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NZ616274B2 - Branched 3-phenylpropionic acid derivatives and the use thereof - Google Patents
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NZ616274B2 - Branched 3-phenylpropionic acid derivatives and the use thereof - Google Patents

Branched 3-phenylpropionic acid derivatives and the use thereof Download PDF

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Publication number
NZ616274B2
NZ616274B2 NZ616274A NZ61627412A NZ616274B2 NZ 616274 B2 NZ616274 B2 NZ 616274B2 NZ 616274 A NZ616274 A NZ 616274A NZ 61627412 A NZ61627412 A NZ 61627412A NZ 616274 B2 NZ616274 B2 NZ 616274B2
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New Zealand
Prior art keywords
methyl
fluorine
dmso
diastereomer
mmol
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NZ616274A
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NZ616274A (en
Inventor
Evamaria Beckerpelster
Michael Hahn
Andreas Knorr
Thomas Lampe
Volkhart Minjian Li
Karlheinz Schlemmer
Johannespeter Stasch
Friedericke Stoll
Elisabeth Woltering
Frank Wunder
Pelster Eva Maria Becker
Volkhart Min Jian Li
Karl Heinz Schlemmer
Johannes Peter Stasch
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Bayer Intellectual Property Gmbh
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Priority claimed from DE102011007272A external-priority patent/DE102011007272A1/en
Application filed by Bayer Intellectual Property Gmbh filed Critical Bayer Intellectual Property Gmbh
Publication of NZ616274A publication Critical patent/NZ616274A/en
Publication of NZ616274B2 publication Critical patent/NZ616274B2/en

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/185Acids; Anhydrides, halides or salts thereof, e.g. sulfur acids, imidic, hydrazonic or hydroximic acids
    • A61K31/19Carboxylic acids, e.g. valproic acid
    • A61K31/195Carboxylic acids, e.g. valproic acid having an amino group
    • A61K31/196Carboxylic acids, e.g. valproic acid having an amino group the amino group being directly attached to a ring, e.g. anthranilic acid, mefenamic acid, diclofenac, chlorambucil
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K45/00Medicinal preparations containing active ingredients not provided for in groups A61K31/00 - A61K41/00
    • A61K45/06Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/0012Galenical forms characterised by the site of application
    • A61K9/0053Mouth and digestive tract, i.e. intraoral and peroral administration
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P13/00Drugs for disorders of the urinary system
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P13/00Drugs for disorders of the urinary system
    • A61P13/12Drugs for disorders of the urinary system of the kidneys
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P43/00Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P7/00Drugs for disorders of the blood or the extracellular fluid
    • A61P7/02Antithrombotic agents; Anticoagulants; Platelet aggregation inhibitors
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P9/00Drugs for disorders of the cardiovascular system
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P9/00Drugs for disorders of the cardiovascular system
    • A61P9/04Inotropic agents, i.e. stimulants of cardiac contraction; Drugs for heart failure
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P9/00Drugs for disorders of the cardiovascular system
    • A61P9/10Drugs for disorders of the cardiovascular system for treating ischaemic or atherosclerotic diseases, e.g. antianginal drugs, coronary vasodilators, drugs for myocardial infarction, retinopathy, cerebrovascula insufficiency, renal arteriosclerosis
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P9/00Drugs for disorders of the cardiovascular system
    • A61P9/12Antihypertensives
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C231/00Preparation of carboxylic acid amides
    • C07C231/14Preparation of carboxylic acid amides by formation of carboxamide groups together with reactions not involving the carboxamide groups
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C233/00Carboxylic acid amides
    • C07C233/01Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
    • C07C233/45Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by carboxyl groups
    • C07C233/53Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by carboxyl groups with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by a carbon atom of a six-membered aromatic ring
    • C07C233/55Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by carboxyl groups with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by a carbon atom of a six-membered aromatic ring having the carbon atom of the carboxamide group bound to a carbon atom of an unsaturated carbon skeleton
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C235/00Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by oxygen atoms
    • C07C235/02Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by oxygen atoms having carbon atoms of carboxamide groups bound to acyclic carbon atoms and singly-bound oxygen atoms bound to the same carbon skeleton
    • C07C235/32Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by oxygen atoms having carbon atoms of carboxamide groups bound to acyclic carbon atoms and singly-bound oxygen atoms bound to the same carbon skeleton the carbon skeleton containing six-membered aromatic rings
    • C07C235/38Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by oxygen atoms having carbon atoms of carboxamide groups bound to acyclic carbon atoms and singly-bound oxygen atoms bound to the same carbon skeleton the carbon skeleton containing six-membered aromatic rings having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a six-membered aromatic ring
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2601/00Systems containing only non-condensed rings
    • C07C2601/02Systems containing only non-condensed rings with a three-membered ring
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2601/00Systems containing only non-condensed rings
    • C07C2601/04Systems containing only non-condensed rings with a four-membered ring
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2601/00Systems containing only non-condensed rings
    • C07C2601/06Systems containing only non-condensed rings with a five-membered ring
    • C07C2601/08Systems containing only non-condensed rings with a five-membered ring the ring being saturated

Abstract

The disclosure relates to 3-phenylpropionic acid derivatives carrying a branched or cyclic alkyl substituent at the 3-position, to methods for the production thereof, to the use thereof for treating and/or preventing illnesses, and to the use thereof for producing pharmaceuticals for treating and/or preventing illnesses, in particular for treating and/or preventing cardiovascular diseases. Examples of compounds of formula (I) are: Methyl 3-(4-chloro-3-{[(2S,3R)-2-(4-chlorophenyl)-4,4,4-trifluoro-3-methylbutanoyl]amino}phenyl)-5,5-difluorohexanoate; Methyl 3-(4-chloro-3-{[(2S,3R)-2-(4-chlorophenyl)-4,4,4-trifluoro-3-methylbutanoyl]amino}phenyl)-3-(2,2-difluorocyclopropyl)propanoate and tert-Butyl 3-(4-chloro-3-{[(2S,3R)-2-(4-chlorophenyl)-4,4,4-trifluoro-3-methylbutanoyl]amino}phenyl)-3-(3,3-difluorocyclobutyl)propanoate. preventing illnesses, in particular for treating and/or preventing cardiovascular diseases. Examples of compounds of formula (I) are: Methyl 3-(4-chloro-3-{[(2S,3R)-2-(4-chlorophenyl)-4,4,4-trifluoro-3-methylbutanoyl]amino}phenyl)-5,5-difluorohexanoate; Methyl 3-(4-chloro-3-{[(2S,3R)-2-(4-chlorophenyl)-4,4,4-trifluoro-3-methylbutanoyl]amino}phenyl)-3-(2,2-difluorocyclopropyl)propanoate and tert-Butyl 3-(4-chloro-3-{[(2S,3R)-2-(4-chlorophenyl)-4,4,4-trifluoro-3-methylbutanoyl]amino}phenyl)-3-(3,3-difluorocyclobutyl)propanoate.

Description

The present application relates to novel 3—phenylpropionic acid tives which carry a branched or cyclic alkyl substituent in the 3-position, to processes for their preparation, to their use for the treatment and/or prevention of diseases and to their use for preparing medicaments for the treatment and/or prevention of diseases, in ular for the treatment and/or prevention of cardiovascular diseases, One of the most ant cellular transmission systems in mammalian cells is cyclic guanosine monophosphate (cGMP). Together with nitric oxide (NO), which is released from the endothelium and transmits hormonal and mechanical signals, it forms the NO/cGMP system.
Guanylate cyclases se the biosynthesis of cGMP from guanosine triphosphate (GTP). The representatives of this family disclosed to date can be divided both according to structural features and according to the type of ligands into two groups: the particulate guanylate cyclases which can be stimulated by natriuretic peptides, and the soluble ate cyclases which can be stimulated by NO. The soluble guanylate cyclases consist of two ts and very probably contain one haem per heterodimer, which is part of the regulatory site. The latter is of central importance for the mechanism of activation. NO is able to bind to the iron atom of haem and thus markedly increase the activity of the enzyme. ree preparations cannot, by contrast, be stimulated by NO. Carbon monoxide (CO) is also able to attach to the central iron atom of haem, but the stimulation by CO is distinctly less than that by NO.
Through the production of cGMP and the regulation, resulting therefrom, of phosphodiesterases, ion channels and protein kinases, guanylate cyclase plays a crucial part in various physiological processes, in particular in the tion and proliferation of smooth muscle cells, in platelet aggregation and adhesion and in neuronal signal ission, and in ers caused by an impairment of the aforementioned processes. Under pathophysiological conditions, the NO/CGMP system may be suppressed, which may lead for example to high blood pressure, platelet tion, increased cellular proliferation, endothelial dysfunction, atherosclerosis, angina pectoris, heart failure, thromboses, stroke and dial infarction.
A possible way oftreating such disorders which is independent of NO and aims at influencing the cGMP signaling pathway in sms is a promising approach because of the high efficiency and In few side effects which are to be expected.
Compounds, such as organic nitrates, whose effect is based on NO have to date been exclusively used for the therapeutic stimulation of soluble guanylate e. NO is ed by bioconversion and tes soluble ate cyclase by attaching to the central iron atom of haem. Besides the side effects, the development of nce is one of the l disadvantages of this mode of treatment [0.V. Evgenov et al., Nature Rev. Drug Disc. 5 (2006), 755].
Substances which ly ate soluble guanylate cyclase, i.e. without previous release of NO, have been identified in recent years. The indazole derivative YC-l was the first NO—independent but haem—dependent sGC stimulator bed [Evgenov et al., ibid] Based on YC—l, further substances were discovered which are more potent than YC—l and show no relevant inhibition of phosphodiesterases (PDE). This led to the identification of the pyrazolopyridine derivatives BAY 41-2272, BAY 41-8543 and BAY 63-2521. Together with the recently published urally ent substances CMF-157l and A-350619, these nds form the new class of the sGC stimulators [Evgenov et al., ibia’.]. A common characteristic of this substance class is an NO- independent and selective activation of the haem-containing sGC. In addition, the sGC stimulators in combination with NO have a istic effect on sGC activation based on a stabilization of the nitrosyl-haem complex. The exact binding site of the sGC stimulators at the sGC is still being debated. If the haem group is removed from the soluble guanylate e, the enzyme still has a detectable catalytic basal activity, i.e. cGMP is still being formed. The remaining catalytic basal activity of the haem-free enzyme cannot be stimulated by any of the stimulators mentioned above [Evgenov et al., ibid].
In addition, NO- and haem-independent sGC activators, with BAY 58-2667 as prototype of this class, have been identified. Common characteristics of these substances are that in combination with NO they only have an additive effect on enzyme activation, and that the activation of the oxidized or haem-free enzyme is markedly higher than that of the ontaining enzyme [Evgenov et al., ibid.; J.P. Stasch et al., Br. J Pharmacol. m (2002), 773; JP. Stasch et al., J.
Clin. . E (2006). 2552]. Spectroscopic studies show that BAY 58-2667 displaces the oxidized haem group which, as a result of the weakening of the iron-histidine bond, is attached only weakly to the sGC. It has also been shown that the characteristic sGC haem binding motif Tyr-x-Ser—x—Arg is absolutely essential both for the interaction of the negatively charged propionic acids of the haem group and for the action of BAY 58-2667. Against this background, it is assumed that the binding site of BAY 58—2667 at the sGC is identical to the binding site of the haem group [J.P. Stasch et al., J. Clin. Invest. E (2006), 2552].
The compounds described in the present invention are now likewise capable of activating the haem—free form of e guanylate e. This is also confirmed by the fact that these novel activators firstly have no synergistic action with NO at the haem-containing enzyme and that secondly their action cannot be blocked by the haem-dependent inhibitor of soluble guanylate cyclase, ,4-oxadiazolo[4,3-a]quinoxalin-l—one (ODQ), but is even potentiated by this inhibitor [cf. O.V. Evgenov et al., Nature Rev. Drug Disc. 5 (2006), 755; J.P. Stasch et al., J. Clin.
Invest. 116 (2006), 2552].
It was thus an object of the present invention to provide novel nds which act as activators of soluble guanylate cyclase in the manner described above and can be used as such in particular for the treatment and prevention of vascular disorders.
WO 00/64888-A1, EP 1 216 980-A1, EP 1 285 908-A1, EP 1 348 698-A1, EP 1 375 472-A1, EP 1 452 521-A1, US 2005/0187266-A1 and US 2005/0234066-A1 describe s arylalkanecarboxylic acid derivatives as PPAR agonists for treating diabetes, dyslipidaemia, arteriosclerosis, obesity and other disorders. EP 1 312 601-A1 and EP 1 431 267-A1 disclose substituted arylalkanecarboxylic acids as PGE2 receptor antagonists for the treatment, for example, of states of pain, urological disorders, Alzheimer's disease and cancer. Furthermore, WO 2005/ 086661-A2 claims arylalkanecarboxylic acids as GPR40 modulators for the treatment of diabetes and dyslipidaemias, and -A2, WO 50097-A1 and -A2 be -substituted carboxylic acids as PTP-1B inhibitors for the treatment of diabetes, cancer and neurodegenerative disorders. Furthermore, individual phenylacetamido-substituted phenylalkanecarboxylic acids which, in the form of non-covalent mixtures e the delivery of active peptide compounds within the body are known from WO 96/12473-A1 and WO 96/30036-A1. -A2 claims 3,5-disubstituted phenylacetic acid derivatives for the treatment of mer's disease. -A1 and WO 2010/ -A1 disclose oxoheterocyclically substituted carboxylic acid tives which act as activators of soluble guanylate cyclase.
The present invention as claimed herein is described in the following Items 1 to 10: 1. Compound of the formula (I) O R3 R5 R1 R2 HN O R9 (I), 7297336_1 (GHMatters) P94789.NZ JENNYP - 3a - in which R1, R2 and R3 independently of one another ent hydrogen or methyl, L represents a bond or represents -CH2-, R4A and R4B ndently of one another represent methyl, trifluoromethyl or ethyl or R4A and R4B are attached to one another and together with the carbon atom to which they are ed form a cyclopropyl or cyclobutyl ring which may be substituted up to two times by fluorine, R5 represents hydrogen, fluorine, methyl or methoxy, R6 represents hydrogen, fluorine, chlorine, bromine, cyano, methyl, trifluoromethyl, ethyl, methoxy or trifluoromethoxy, R7 represents hydrogen, fluorine, chlorine or , R8A represents methyl or ethyl, R8B represents trifluoromethyl, or R8A and R8B are attached to one another and together with the carbon atom to which they are ed form an optionally difluoro-substituted cyclopentyl ring of the formula or , , F F F R9 represents fluorine, chlorine, bromine, cyano, (C1-C4)-alkyl, (C2-C4)-alkenyl, cyclopropyl or cyclobutyl, where (C1-C4)-alkyl and (C2-C4)-alkenyl may be substituted up to three times by fluorine cyclopropyl and cyclobutyl may be substituted up to two times by fluorine, 7297336_1 (GHMatters) P94789.NZ JENNYP - 3b - R10 represents hydrogen, fluorine, chlorine, methyl, trifluoromethyl, ethyl or methoxy, and salts, solvates and solvates of the salts f. 2. Compound of the formula (I) according to Item 1 in which R1 represents hydrogen or methyl, R2 represents en, R3 represents hydrogen or , L represents a bond or represents -CH2-, R4A and R4B both represent methyl or are attached to one another and er with the carbon atom to which they are attached form a cyclopropyl or cyclobutyl ring which may be tuted up to two times by fluorine, R5 represents hydrogen, fluorine, methyl or methoxy, R6 represents fluorine, chlorine, methyl or ethyl, R7 represents hydrogen or fluorine, R8A represents methyl, R8B ents trifluoromethyl, R8A and R8B are attached to one another and together with the carbon atom to which they are attached form a difluoro-substituted cyclopentyl ring of the formula or , F F R9 represents fluorine, chlorine, (C1-C4)-alkyl, (C2-C3)-alkenyl, cyclopropyl or cyclobutyl, where (C1-C4)-alkyl and (C2-C3)-alkenyl may be substituted up to three times by fluorine 7297336_1 (GHMatters) P94789.NZ JENNYP - 3c - cyclopropyl and cyclobutyl may be substituted up to two times by fluorine, R10 ents hydrogen, fluorine, chlorine, methyl or methoxy, and salts, solvates and solvates of the salts thereof.. 3. Compound of the formula (I) according to Item 1 or 2 in which R1 and R2 both represent en, R3 represents hydrogen or methyl, L represents a bond or represents -CH2-, R4A and R4B both represent methyl or are attached to one r and together with the carbon atom to which they are attached form a cyclopropyl or cyclobutyl ring which may be substituted up to two times by fluorine, R5 represents hydrogen, fluorine or , R6 represents chlorine, R7 represents hydrogen, R8A represents methyl, R8B represents trifluoromethyl, R9 represents fluorine, chlorine, methyl, oromethyl, ethyl, 2,2,2-trifluoroethyl, isopropyl, tert -butyl, cyclopropyl or 2,2-difluorocyclopropyl, and R10 ents hydrogen, fluorine, methyl or methoxy, and salts, solvates and solvates of the salts thereof. 7297336_1 (GHMatters) P94789.NZ JENNYP - 3d - 4. Compound of the formula (I) according to any of Items 1 to 3, wherein the compound is: HN O F F Cl and salts, solvates and solvates of the salts thereof.
. Process for preparing a nd of the formula (I) as d in any of Items 1 to 4, characterized in that a carboxylic acid of the formula (II) HO O R9 (II), in which R8A, R8B, R9 and R10 have the meanings given in any of Items 1 to 3, is coupled in an inert solvent with the aid of a condensing agent or via the intermediate of the corresponding carbonyl chloride in the presence of a base with an amine of the formula (III) O R3 R5 T1 O R1 R2 2 (III), in which L, R1, R2, R3, R4A, R4B, R5, R6 and R7 have the gs given in Items 1 to 3 7297336_1 (GHMatters) P94789.NZ JENNYP - 3e - T1 represents (C1-C4)-alkyl or benzyl, to give a carboxamide of the formula (IV) O R3 R5 T1 O R1 R2 HN O R9 (IV), in which L, R1, R2, R3, R4A, R4B, R5, R6, R7, R8A, R8B, R9, R10 and T1 have the meanings given above, and the ester radical T1 is then removed by basic or acidic solvolysis or, in the case that T1 represents benzyl, also by hydrogenolysis to give the carboxylic acid of the formula (I) and the compounds of the a (I) are optionally separated by methods known to the person skilled in the art into their enantiomers and/or reomers and/or reacted with the appropriate (i) solvents and/or (ii) bases to give their solvates, salts and/or solvates of the salts. 6. Compound as defined in any of Items 1 to 4 for the treatment and/or prevention of diseases. 7. Use of a compound as defined in any of Items 1 to 4 for ing a medicament for the treatment and/or prevention of heart failure, angina pectoris, hypertension, pulmonary hypertension, thromboembolic disorders, ischaemias, vascular disorders, microcirculation impairments, renal insufficiency, fibrotic disorders and arteriosclerosis. 8. ment comprising a compound as defined in any of Items 1 to 4 in combination with one or more inert, xic, pharmaceutically suitable ents. 7297336_1 (GHMatters) P94789.NZ JENNYP - 3f - 9. Medicament comprising a compound as d in any of Items 1 to 4 in combination with one or more r active compounds selected from the group consisting of organic nitrates, NO donors, cGMP-PDE inhibitors, stimulators of guanylate e, agents having antithrombotic ty, agents lowering blood pressure, and agents altering lipid metabolisms.
. Medicament according to Item 8 or 9 for the treatment and/or prevention of heart failure, angina pectoris, hypertension, pulmonary hypertension, thromboembolic disorders, ischaemias, ar disorders, microcirculation impairments, renal insufficiency, fibrotic disorders and arteriosclerosis.
The present invention provides compounds of the general formula (I) O R3 R5 R1 R2 HN O R9 (I), in which 7297336_1 (GHMatters) P94789.NZ JENNYP R], R2 and R3 independently of one another represent hydrogen or methyl, I. represents a bond or represents -CH2—, R4A and R413 independently of one another ent methyl, trifluoromethyl or ethyl R4A and R413 are attached to one another and together with the carbon atom to which they are attached form a cyclopropyl or utyl ring which may be substituted up to two times by e, R5 represents hydrogen, fluorine, methyl or methoxy, R6 represents hydrogen, fluorine, chlorine, bromine, cyano, methyl, trifluoromethyl, ethyl, methoxy or trifluoromethoxy, R7 represents hydrogen, fluorine, chlorine or , R8/" represents methyl or ethyl, R8'3 represents trifluoromethyl, RSA and R8B are attached to one another and together with the carbon atom to which they are attached form an optionally difluoro-substituted cyclopentyl ring of the formula 0? t .
R9 represents fluorine, chlorine, bromine, cyano, (C1-C4)—alkyl, (C2-C4)—alkenyl, cyclopropyl or cyclobutyl, where )-alkyl and (C2-C4)-alkenyl may be substituted up to three times by fluorine cyclopropyl and utyl may be substituted up to two times by fluorine, R[0 represents hydrogen, fluorine, chlorine, methyl, trifluoromethyl, ethyl or methoxy, and salts, solvates and solvates of the salts thereof.
Compounds according to the invention are the nds of the formula (I) and their salts, es and solvates of the salts, the compounds ed in the formula (I) of the formulae mentioned in the ing and their salts, solvates and solvates of the salts, and the compounds included in the formula (I) and mentioned in the following as embodiment examples and their salts, solvates and solvates of the salts, where the compounds included in the a (I) and mentioned in the following are not already salts, solvates and solvates of the salts.
Preferred salts in the context of the present invention are physiologically acceptable salts of the nds according to the invention. Salts which are not themselves suitable for pharmaceutical uses but can be used, for example, for isolation, purification or storage of the compounds according to the invention are also included.
Physiologically acceptable salts of the compounds according to the invention include in particular salts of conventional bases, such as, by way of example and preferably, alkali metal salts (e.g. sodium and potassium salts), alkaline earth metal salts (e.g. calcium and ium salts) and ammonium salts derived from ammonia or organic amines having 1 to 16 C atoms, such as, by way of example and preferably, ethylamine, diethylamine, triethylamine, N,N—diisopropylethylamine, monoethanolamine, diethanolamine, triethanolamine, dimethylaminoethanol, laminoethanol, ne, dicyclohexylamine, dibenzylamine, N—methylpiperidine, N-methylmorpholine, arginine, lysine and 1,2—ethylenediamine.
Solvates in the t of the ion are designated as those forms of the compounds according to the invention which form a complex in the solid or liquid state by coordination with solvent molecules. Hydrates are a specific form of solvates, in which the coordination takes place with water. Hydrates are preferred solvates in the context of the present invention.
Depending on their structure, the compounds ing to the invention may exist in different isomeric forms, i.e. in the form of configurational isomers or if appropriate also as conformational isomers (enantiomers and/or diastereomers, including those in the case of atropisomers). The present ion therefore encompasses the omers or diastereomers and the respective es thereof. The stereoisomerically uniform constituents can be isolated from such mixtures of enantiomers and/or diastereomers in a known manner; chromatography processes are preferably used for this, in particular HPLC chromatography on an achiral or chiral phase.
Where the compounds according to the invention can occur in tautomeric forms, the present invention encompasses all the tautomeric forms.
The present invention also encompasses all suitable isotopic variants of the compounds according to the invention. An isotopic variant of a compound according to the invention is understood here to mean a compound in which at least one atom within the nd according to the invention has been exchanged for another atom of the same atomic number, but with a different atomic mass than the atomic mass which usually or predominantly occurs in nature. Examples of es which can be incorporated into a compound according to the ion are those of hydrogen, carbon, nitrogen, oxygen, phosphorus, sulphur, fluorine, chlorine, bromine and iodine, such as 2H rium), 3H (tritium), 13C, 14C, "N, 17o, "‘0, 32P, 33P, 33s, "s, 35s, 36s, "1?, 36C1, 82Br, "31, "41, ml and 1311. Particular isotopic variants ofa compound ing to the invention, especially those in which one or more radioactive isotopes have been orated, may be beneficial, for example, for the examination ofthe mechanism of action or ofthe active compound distribution in the body; due to comparatively easy preparability and ability, especially compounds labelled with 3H or 14C isotopes are suitable for this purpose. In addition, the incorporation of isotopes, for example of ium, can lead to particular therapeutic benefits as a consequence of greater lic stability of the compound, for example an extension of the half-life in the body or a reduction in the active dose required; such modifications of the compounds according to the invention may ore in some cases also constitute a preferred embodiment of the present invention. Isotopic variants of the compounds according to the invention can be prepared by generally used processes known to those skilled in the art, for example by the methods described below and the methods described in the g es, by using corresponding isotopic modifications of the particular reagents and/or starting compounds therein.
The present invention moreover also includes prodrugs of the compounds according to the invention. The term "prodrugs" here designates compounds which themselves can be biologically active or inactive, but are converted (for example metabolically or hydrolytically) into compounds ing to the invention during their dwell time in the body.
As prodrugs, the present invention comprises in particular hydrolysable ester derivatives of the carboxylic acids of the formula (1) according to the invention. These are to be understood as meaning esters which can be ysed to the free ylic acids, as the compounds that are mainly active biologically, in physiological media, under the conditions of the ical tests described later and in particular in vivo by enzymatic or chemical routes. (C 1-C4)—alkyl esters, in which the alkyl group can be straight-chain or branched, are preferred as such . Particular preference is given to methyl, ethyl or tert-butyl esters.
In the context of the present invention, the substituents have the following meaning, unless specified otherwise: (Elfigt-Alkyl in the context of the invention represents a straight-chain or branched alkyl radical having 1 to 4 carbon atoms. The following may be mentioned by way of example and by way of ence: methyl, ethyl, n—propyl, isopropyl, n—butyl, isobutyl, sec—butyl and lert-butyl. -( ll\_qnyl .md ' If :(_'.,I.-_.‘|_lj\_gn§_l in the context of the invention represent a straight-chain or ed alkenyl radical having a double bond and 2 to 4 and 2 or 3 carbon atoms, respectively. A straight-chain or branched alkenyl radical having 2 or 3 carbon atoms is preferred. The following may be mentioned by way of example and by way of preference: Vinyl, allyl, n-prop-l-en-l-yl, iso- propenyl, n-but-l—en-l-yl, n—but—2-eny1, n-but—3—enyl, 2-methylprop—l-en-l—yl and 2-methyl- propen- l -yl.
In the t of the present invention, all radicals which occur more than once are defined independently of one another. If radicals in the compounds according to the invention are substituted, the radicals may be mono— or polysubstituted, unless specified otherwise. Substitution by one, two or three cal or different substituents is red. Particular preference is given to substitution by one or two identical or different tuents.
In the context of the present invention, preference is given to compounds of the formula (I) in which R] represents hydrogen or methyl, R2 represents hydrogen, R3 represents hydrogen or methyl, | ents a bond or represents -CH3—, R4" and R413 both represent methyl or are ed to one another and together with the carbon atom to which they are attached form a cyclopropyl or cyclobutyl ring which may be substituted up to two times by fluorine, R5 represents hydrogen, fluorine, methyl or methoxy, R6 represents fluorine, chlorine, methyl or ethyl, R7 represents hydrogen or ne, R8A represents methyl, R83 represents trifluoromethyl, R8A and R813 are attached to one another and together with the carbon atom to which they are attached form a o-substituted cyclopentyl ring of the formula R9 ents fluorine, chlorine, )-alkyl, )-alkenyl, cyclopropyl or cyclobutyl, where (Cl-C4)-a1kyl and (C2—C3)-alkenyl may be substituted up to three times by fluorine cyclopropyl and cyclobutyl may be substituted up to two times by fluorine, R10 represents hydrogen, fluorine, chlorine, methyl or methoxy, and salts, solvates and solvates of the salts thereof.
A particular embodiment of the present invention comprises compounds of the formula (I) in which R1 and R2 both represent hydrogen, and salts, solvates and solvates of the salts thereof.
A further particular embodiment of the present invention comprises compounds of the formula (I) in which Bu R3 ents hydrogen or methyl L represents a bond, and salts, solvates and solvates of the salts thereof.
A further particular embodiment of the t invention comprises compounds of the formula (I) in which R3 represents hydrogen L represents -CH2-, and salts, solvates and solvates of the salts thereof.
A further particular embodiment of the present invention comprises compounds of the formula (I) in which RM and R413 both represent methyl R5 represents hydrogen, and salts, solvates and solvates of the salts f.
A further particular embodiment of the present invention comprises compounds of the formula (I) in which R4A and R413 are attached to one another and er with the carbon to which they are attached form a cyclopropyl or cyclobutyl ring which may be substituted up to two times by R5 ents hydrogen, e or methyl, and salts, solvates and solvates of the salts thereof.
A further particular embodiment of the present invention comprises compounds of the formula (I) in which R6 represents chlorine and R7 represents hydrogen, and salts, solvates and es of the salts thereof.
A further particular embodiment of the present invention comprises compounds of the formula (I) in which R8A represents methyl R813 represents trifluoromethyl, and salts, solvates and solvates of the salts thereof.
A further particular embodiment of the present invention comprises compounds of the formula (I) in which R8le and R813 are ed to one another and together with the carbon atom to which they are attached form a difluoro-substituted cyclopentyl ring of the formula and salts, solvates and solvates of the salts f.
A further ular embodiment of the present invention comprises compounds of the formula (I) in which R9 represents fluorine, chlorine, (C1-C4)-alkyl or cyclopropyl, where (C1-C4)-a1kyl may be substituted up to three times by fluorine and cyclopropyl may be substituted up to two times by fluorine, and salts, solvates and es of the salts thereof.
A further particular embodiment of the present invention comprises nds of the a (I) in which R10 represents hydrogen, fluorine, chlorine, methyl or methoxy, and salts, solvates and solvates of the salts thereof.
Particular preference in the context of the present invention is given to compounds of the formula (I) in which R1 and R2 both represent hydrogen, R3 represents hydrogen or methyl, L represents a bond or represents -CH2-, R4A and R413 both represent methyl or are attached to one another and together with the carbon atom to which they are attached form a cyclopropyl or cyclobutyl ring which may be tuted up to two times by fluorine, R5 represents hydrogen, fluorine or methyl, R6 represents chlorine, R7 represents en, R8A represents methyl, R83 represents trifluoromethyl, R9 represents fluorine, chlorine, , romethyl, ethyl, 2,2,2-trifluor0ethyl, isopropyl, tert—butyl, cyclopropyl or 2,2-difluorocyclopropyl, R10 represents hydrogen, fluorine, methyl or methoxy, and salts, solvates and es of the salts thereof.
Of particular importance in the context of the present invention are compounds of the formula (I-A) R9 (I-A), in which the carbon atom marked * of the phenylacetamide grouping has the guration shown the radicals R3, RM, R48, R5, R6, RSA, R83, R9 and R10 and L each have the meanings given above, and salts, solvates and solvates of the salts thereof.
The definitions of radicals indicated specifically in the respective combinations or preferred combinations of radicals are replaced as desired irrespective of the ular combinations indicated for the radicals also by definitions of radicals of other combinations. Combinations of two or more of the abovementioned red ranges are very particularly preferred.
The invention furthermore provides a process for preparing the compounds of the formula (1) according to the invention, characterized in that a ylic acid of the a (11) HO O in which R", R88, R9 and R10 have the meanings given above, is coupled in an inert solvent with the aid of a condensing agent or via the intermediate of the corresponding carbonyl chloride in the presence of a base with an amine of the formula (III) 3 Inert solvents for the process step (H) + (III) ——> (IV) [amide coupling] are, for example, ethers such as diethyl ether, tert-butyl methyl ether, tetrahydrofuran, 1,4-dioxane, glycol dimethyl ether or di- ethylene glycol dimethyl ether, arbons such as e, toluene, xylene, hexane, cyclohexane or mineral oil fractions, halogenated hydrocarbons such as dichloromethane, trichloromethane, carbon tetrachloride, 1,2—dichloroethane, trichloroethylene or benzene, or other solvents such as acetone, acetonitrile, ethyl acetate, pyridine, dimethyl sulphoxide (DMSO), methylformamide (DMF), N,N’—dimethylpropyleneurea (DMPU) or N—methylpyrrolidinonc (NMP). It is also possible to use mixtures of the solvents mentioned. Preference is given to using dichloromethane, tetrahydrofuran, dimethylformamide or es of these solvents.
Suitable condensing agents for these coupling reactions are, for example, iimides such as N,N'—diethyl-, N,N’-dipropyl-, N,N’-diisopropyl-, N,N’-dicyclohexylcarbodiimide (DCC) or imethylaminopropyl)-N’-ethylcarbodiimide hydrochloride (EDC), phosgene derivatives such as MN’-carb0nyldiimidazole (CD1) or isobutyl chloroformate, 1,2-oxazolium compounds such as 2-ethylphenyl-1,2-0xazolium 3-su1phate or 2-tert-bulyl 5-methy1isoxazolium perchlorate, acyl- amino compounds such as 2-ethoxy-l—ethoxycarbonyl-l,2-dihydroquin01ine, OL-chloroenamines such as l-chloro—Z—methyl—l—dimethylamino—l-pr0pene, phosphorus compounds such as propane— phosphonic anhydride, diethyl cyanophosphonate, bis(2—oxo-3—oxazolidinyl)phosphoryl chloride, benzotriazol—l-yloxy-tris(dimethylamino)phosphonium hexafluorophosphate or benzotriazol—l-yl— 0xy—tris(pyrrolidino)phosphonium hexafluorophosphate (PyBOP), or uronium nds such as zotriazol-l—yl)—N,N,N',N'—tetramethyluronium tetrafluoroborate (TBTU), zotriazol- 1—yl)-N,N,N',N’—tetramethyluronium hexafluorophosphate (HBTU), 2—(2—oxo-l-(21fi-pyridyl)— ‘ll 1,1,3,3-tetramethyluronium tetrafluoroborate (TPTU), O—(7—azabenzotriazol—1-yl)-N,N,N’,N’-tetra- methyluronium hexafluorophosphate (HATU) or 0-(1H-6—chlor0benzotriazol-l-yl)-1,1,3,3-tetra- methyluronium tetrafluoroborate (TCTU), if appropriate in combination with further aries such as 1-hydroxybenzotriazole (HOBt) or N—hydroxysuccinimide (HOSu), and as bases alkali metal carbonates, for example sodium carbonate or potassium carbonate, or tertiary amine bases such as triethylamine, N-methylmorpholine, N-methylpiperidine, N,N-diisopropylethylamine, pyridine or 4-N, N—dimethylaminopyridine. Preference is given to using O-(7—azabenzotriazol—l—yl)— N,N,N',N’-tetramethyluronium hexafluorophosphate (HATU) in combination with pyridine or N,N— diisopropylethylamine, or N—(3-dimethylaminopropyl)—N'—ethylcarbodiimide hydrochloride (EDC) in combination with l—hydroxybenzotriazole (HOBt) and triethylamine, or ro-Z—methyl- l-dimethylamino—l—propene together with pyridine.
The reaction (H) + (111) —> (IV) is generally carried out in a temperature range of from 0°C to +60°C, ably at from +10°C to +40°C.
When a carbonyl chloride corresponding to the nd (II) is used, the coupling with the amine component (III) is carried out in the presence of a customary organic auxiliary base such as triethylamine, N—methylmorpholine, N—methylpiperidine, N,N-diisopropylethylamine, pyridine, 4-N,N—dimethylaminopyridine, l,8—diazabicyclo[5.4.0]undec-7—ene (DBU) or 1,5—diazabicyclo- [4.3.0]non—5—ene (DBN). Preference is given to using triethylamine or N,N—diisopropylethylamine.
The reaction of the amine (III) with the carbonyl chloride is generally carried out in a temperature range of from -20°C to +60°C, preferably in the range from -10°C to +30°C.
For their part, the preparation of the carbonyl chlorides is carried out in a customary manner by treating the carboxylic acid (II) with thionyl chloride or oxalyl chloride.
The removal of the ester group T' in process step (IV) —> (I) is carried out by customary methods by treating the ester in inert solvents with acids or bases, where in the latter variant the salt initially IO formed is converted by treatment with acid into the free carboxylic acid. In the case of the tert- butyl esters, the ester cleavage is preferably carried out using acids. Benzyl esters are preferably cleaved by hydrogenolysis (hydrogenation) in the presence of a suitable catalyst such as, for example, palladium on activated carbon.
Suitable inert ts for these reactions are water or c ts customary for ester cleavage. These preferably include alcohols such as methanol, ethanol, n-propanol, isopropanol, n-butanol or tert-butanol, or ethers such as diethyl ether, tetrahydrofuran, dioxane or glycol dimethyl ether, or other solvents such as acetone, dichloromethane, dimethylformamide or dime- thyl sulphoxide. It is also possible to use mixtures of the solvents mentioned above. In the case ofa basic ester hydrolysis, ence is given to using mixtures of water with dioxane, tetrahydrofuran, methanol and/or ethanol. In the case of the reaction with trifluoroacetic acid, preference is given to using romethane and in the case of the reaction with en chloride, preference is given to using tetrahydrofuran, diethyl ether, dioxane or water.
Suitable bases are the customary inorganic bases. These include in particular alkali or alkaline earth metal hydroxides such as, for example, lithium ide, sodium hydroxide, potassium hydroxide or barium hydroxide, or alkali or alkaline earth metal carbonates such as sodium carbonate, potassium ate or calcium carbonate. Preference is given to lithium hydroxide, sodium hydroxide or potassium hydroxide.
Suitable acids for the ester ge are, in general, sulphuric acid, hydrogen chloride/hydrochloric acid, hydrogen bromide/hydrobromic acid, oric acid, acetic acid, trifluoroacetic acid, esulphonic acid, methanesulphonic acid or trifluoromethanesulphonie acid or mixtures f, if appropriate with addition of water. ence is given to en chloride or trifluoroacetic acid in the case of the tert-butyl esters and hydrochloric acid in the case of the methyl esters.
The ester cleavage is generally carried out in a temperature range of from -20°C to , preferably at from 0°C to +60°C.
The intermediates of the formula (II) can be prepared, for e, by [A] initially deprotonating a carboxylic acid of the formula (V) "—0 o R"8 (V), in which RSA and R813 have the meanings given above T2 represents (C1'-C4)-alky1 or benzyl, in an inert solvent with the aid of a base and then ing in the presence of a suitable palladium catalyst with a phenyl bromide of the formula (VI) Rt!) R’ (VI), in which R9 and R10 have the meanings give above, to give a compound of the formula (VII) T’——o o 1 {2 R" (VII), in which REA, R83, R9, R10 and T2 have the meanings given above, [B] alkylating a phenylacetic ester of the formula (VIII) in which R9 and R10 have the meanings given above T2 represents (C1-C4)-alkyl or benzyl, in an inert solvent in the ce of a base with a compound of the formula (1X) RBA X1 R (1X), in which R" and R813 have the meanings given above XI represents a suitable leaving group such as, for example, bromine or iodine, to give the compound of the formula (VII) R" (VII), in which REA, R88, R9, R10 and T2 have the meanings given above, and then in each case removing the ester l T2 by basic or acidic solvolysis or, in the case that T2 represents benzyl, also by hydrogenolysis, giving the carboxylic acid (H).
The arylation on in process step (V) + (VI) —> (VH) is preferably carried out in toluene or toluene/tetrahydrofuran mixtures in a temperature range of from +20°C to +100°C. Here, the base used for deprotonating the ester (V) is preferably lithium bis(trimethylsilyl)amide. Suitable palladium catalysts are, for e, palladium(II) acetate or tris(dibenzylideneacetone)di- palladium, in each case in combination with an electron-rich, sterically demanding phosphine ligand such as 2-dicyclohexylphosphino-2'-(N,N—dimethylamino)biphenyl or 2—di-tert—butyl- phosphino—2'-(N,N—dimethylamin0)biphenyl [cf., for example, WA. Moradi, S.L. Buchwald, J.
Am. Chem. Soc. 123, 7996—8002 (2001)].
Inert solvents for the alkylation reaction (VIII) + (IX) —> (VII) are, for example, ethers such as diethyl ether, methyl tert-butyl ether, dioxane, tetrahydrofuran, glycol dimethyl ether or lene glycol dimethyl ether, hydrocarbons such as benzene, toluene, xylene, hexane, cyclohexane or mineral oil fractions, or dipolar aprotic solvents such as ethylformamide (DlVIF), yl xide (DMSO), N,N'—dimethylpropyleneurea (DMPU) or N—methylpyrrolidinone (NMP). It is also le to use mixtures of the solvents mentioned. Preference is given to using tetrahydro- furan, dimethylformamide or mixtures thereof.
Suitable bases for the process step (VIII) + (IX) —> (VII) are customary strong nic or organic bases. These include in particular alkali metal alkoxides such as sodium methoxide or potassium methoxide, sodium ethoxide or potassium ethoxide or sodium terl—butoxide or potassium tert- de, alkali metal hydrides such as sodium hydride or potassium hydride, or amides such as lithium bis(trimethylsilyl)amide, sodium bis(trimethylsilyl)amide or potassium bis(trimethylsilyl)— amide or lithium diisopropylamide. Preference is given to using potassium tert—butoxide, sodium e or lithium diisopropylamide.
The reaction (VIII) + (IX) a (VII) is generally carried out in a temperature range of from -80°C to In +40°C, preferably at from -20°C to +20°C.
The removal of the ester grouP T2 in Process step (VH) —> (H) is carried out in an analo ousg manner as described above for the ester radical Tl.
Alternatively, intermediates of the formula (II—A) HO O F (II—A), in which R9 and R10 have the gs given above, can also be prepared by initially ting the phenylacetic ester of the formula (VIII) R (VIII), in which R9, R[0 and T2 have the meanings given above, by base-induced addition to 2-cyclopentenone into a compound of the formula (X) T‘L—o o O (X), in which R9, R'0 and T2 have the meanings given above, then fluorinating this nd with (trifluoro-?t4—sulphanyl)imino]bis(2-methoxYethane under boron trifluoride catalysis to give a compound of the formula (VII-A) T—O O F (VII-A), in which R9, R10 and T2 have the meanings given above, and uently removing the ester group T2 again giving the carboxylic acid (HA).
In process step (VIH) —> (X), for deprotonating the ester (VIII), preference is given to using an amide base such as lithium diisopropylamide or lithium imethylsilyl)amide. For the deoxy- fluorination in the transformation (X) —> (VII-A), instead of the l,1'-[(trifluoro-Nl-sulphanyl} imino]bis(2-methoxyethane) ("Desoxofluor") mentioned above, it is also possible, if appropriate, to employ other known fluorinating agents, such as diethylaminosulphur trifluoride (DAST) or morpholinosulphur trifluoride (morpho-DAST) [for the reaction sequence (V111) —> (X) —> (VH—A), cf., for e, T. Mase et al., J. Org. Chem. 6_6 (20), 6775-6786 (2001)].
Depending on their substitution pattern, the intermediates of the formula (111) can be prepared, for e, by either [C—l] reacting a phosphonoacetic ester of the formula (XI) 0 PI 0R" r—o ‘0R" R' (le. in which RI and T1 have the meanings given above R" represents (C1-C4)-alkyl, in an inert solvent in a base-induced olefination reaction with a 3-nitrobenzoyl compound of the formula (XII) (XII), No, in which L, R", R45, R5, R6 and R7 have the meanings given above, to give a nd of the formula (XIII) NO2 (XIII), in which L, R], R", R43, R5, R6, R7 and T' have the meanings given above, and then hydrogenating this compound in the presence of a suitable palladium or platinum catalyst to give a 3-(3-aminopheny1)propionic ester of the formula (HI-A) (HI-A) : in which L, R], R", R43, R5, R6, R7 and TI have the meanings given above, [(3-2] reacting a phosphonoacetic ester of the a (XI) 0 o g,oa‘ rL—o \OR" R (X1), in which RI and T1 have the meanings given above R1] represents (C1-C4)-a1kyl in an inert solvent in a base-induced olefination reaction with a protected 3-arninobenzoyl compound of the formula (XIV) L , PG PG (XIV), in which L, R", R43, R5, R6 and R7 have the meanings given above -22.
PG represents benzyl or 4—methoxybenzyl as inert amino protective group to give a compound of the a (XV) (XV), in which L, PG, R1, RM, R43, R5, R6, R7 and T1 have the meanings given above, then either (i) reducing this compound with magnesium in methanol to give a compound of the formula (XVI) (XVI), in which L, PG, R1, R", R", R5, R6, R7 and T1 have the meanings given above, and uently removing the amino protective groups PG according to customary methods by hydrogenolysis or oxidatively giving the 3-(3-aminophenyl)propionic ester of the formula (III-A) 2 (III-A): in which L, R1, R", R43, R5, R6, R7 and T] have the meanings given above, or (ii) converting the compound of the a (XV) in a one-step process by hydrogenation in the presence of a suitable palladium or platinum catalyst into the 3-(3-aminophenyl)propionic ester of the formula (III-A), coupling an acrylic ester derivative of the formula (XVII) R" (XVII), in which L, R], R", R43, R5 and T1 have the meanings given above, in an inert solvent under palladium sis with a o- or 3-nitrophenyl bromide of the formula (XVIII) R ' (XVIII), in which R6 and R7 have the meanings given above R12 ents amino or nitro, to give a compound of the formula (XIX) (XIX), in which L, R', R", R43, R5, R6, R7, R12 and TI have the meanings given above, and then reducing this compound with hydrogen in the presence of a suitable palladium or platinum catalyst or, in the case that R12 represents amino, alternatively with magnesium in methanol to give the 3—(3-aminophenyl)propionic ester of the formula (III—A) M R48 (HI—A): in which L, R', R", R43, R5, R6, R7 and T1 have the meanings given above, 01' [13-1] converting a phenyl iodide of the a (XX) RI (XX), in which R6 and R7 have the gs given above, in an inert solvent with isopropylmagnesium chloride in the presence of lithium chloride into the corresponding phenylmagnesium compound, then coupling this compound in Situ under copper(I) catalysis with an alkylidenemalonic ester of the formula (XXI) 0 L T3—O R‘ T3—o o (XXI), in which L, R3, R", R4B and R5 have the gs given above T3 ents methyl or ethyl, to give a compound of the formula (XXII) T—O O R (XXII), in which L, R3, R", R", R5, R6, R7 and T3 have the meanings given above, then removing one of the two ester groupings by heating with lithium chloride in a DMSO/water mixture, then converting the resulting 3-phenylpropionic ester of the formula (XXIII) ><5Rae o J R R L ,. 13—0 R6 (XXIII), in which L, R3, R", R", R5, R6, R7 and T3 have the meanings given above, by reaction with ium tetrafluoroborate into the 3-nitropheny1 tive of the formula (XXIV) R>< 0 RE R5 L R" Ta—O T3——O o R' NH2 (XXVII), in which L, R3, R", R43, R5, R6, R7 and T3 have the meanings given above, and then removing one of the two ester groupings by heating with lithium chloride in a DMSO/water mixture, to give the 3-(3-aminophenyl)propionic ester of the formula (III-B) NH2 (DI-B), in which L, R3, R", R", R5, R6, R7 and T3 have the meanings given above, [F] alkylating a carboxylic ester of the formula (XXVIII) . R; R' IXX\' Im. in which R1, R2 and T1 have the meanings given above, in an inert t after rotonation with a 3-bromobenzyl compound of the formula (XXIX) Br (XXIX), in which L, R", R43, R5, R6 and R7 have the meanings given above X2 represents a le g group, such as chlorine, bromine, iodine, mesylate, triflate or tosylate, to give a compound of the formula (XXX) R\;4A R5 (XXX), in which L, R], R2, R", R", R5, R6, R7 and T1 have the meanings given above, then reacting with benzylamine in the presence of a base and a palladium catalyst to give a compound of the formula (XXXl) (XXXI), in which L, R1, R2, R", R43, R5, R6, R7 and T1 have the meanings given above, and then removing the N—benzyl group by enolysis, to give a 3—(3—arninophenyl)propionic ester of the a (DI-C) (HI-C); in which L, R1, R2, R4A, R43, R5, R6, R7 and T1 have the meanings given above.
Suitable for deprotonating the phosphono ester (X1) in the olefination reactions (XI) + (XII) —) (XIII) and (XI) + (XIV) —> (XV) are in particular non-nucleophilie strong bases such as, for example, sodium hydride or potassium hydride, lithium bis(trimethylsilyl)amide, sodium IO imethylsilyl)amide or potassium bis(trimethylsilyl)amide or lithium diisopropylamide; preference is given to using sodium hydride.
The hydrogenation in the process steps (X111) —> (III-A), (XV) —> , (XlX) —> (HI-A) and (XXIV) ——> (HI-B) is generally carried out under a stationary hydrogen atmosphere at atmospheric or elevated pressure. The preferred catalyst used is palladium or platinum on activated carbon (as support material). The removal of the amino protective group(s) in the transformations (XVI) —> (III-A), (XXVI) —> (XXVII) and (XXXI) —> (III-C) is usually carried out by hydrogenolysis according to the same ure; if PG in (XVI) or (XXVI) represents p-methoxybenzyl, this may alternatively also be carried out oxidatively, for example with the aid of 2,3—dichloro—5,6-dicyano- 1,4-benzoquinone (DDQ) or ammonium cerium(IV) nitrate.
Preferred for use as palladium catalyst for the reaction (XVII) + (XVIII) ——> (XIX) [Heck reaction] is palladium(II) acetate or tris(dibenzylideneacetone)dipalladium(0), in each case in combination with a phosphine ligand such as, for example, tri—tert-butylphosphine, triphenylphosphine or tri—2-tolylphosphine.
The conversion of the phenyl iodide (XX) into the corresponding magnesium compound and its copper(I)—mediated 1,4-addition to the alkylidenemalonate (XXI) to give the product of the formula (XXII) are carried out by a general method known from the literature [see, for example, P. Knochel et aL, Tetrahedron E, 2727-2731 (2000), and the literature cited therein]; this also applies to the analogous reaction (XXV) + (XXI) a (XXVI).
Particularly suitable for the a-deprotonation of the carboxylic ester (XXVIII) in the alkylation reaction (XXVIII) + (XXIX) —9 (XXX) are non-nucleophilic strong bases such as, for example, sodium tert-butoxide or ium utoxide, sodium hydride or potassium hydride, lithium diisopropylamide or lithium imethylsilyl)amide; sodium bis(trimethylsilyl)amide or potassium bis(trimethylsilyl)amide; preference is given to using lithium diisopropylamide.
Preferred inert solvents for this reaction are ethers such as l ether, diisopropyl ether, methyl tert-butyl ether, tetrahydrofuran, glycol dimethyl ether or diethylene glycol dimethyl ether. The 2O reaction is usually d out in a temperature range of from -80°C to +25°C.
For the transformation (XXX) —9 (XXXI) ald-Hartwig coupling with benzylamine], the red catalyst tris(dibenzylideneacetone)dipalladium(0) in combination with (i)—2,2'-bis— (diphenylphosphino)—l,l'-binaphthy1 is phosphine ligand, and the preferred base is sodium tert— de or potassium tert—butoxide [cf., for example, J. P. Wolfe and S. L. Buchwald, Organic Syntheses, Coll. Vol. 10, 423 (2004), Vol. 78, 23 (2002)].
The reactions bed above can be carried out at atmospheric pressure, at elevated pressure or at reduced pressure (for example in the range of from 0.5 to 5 bar); in general in each case carried out at atmospheric re.
Separation of the compounds according to the invention into the corresponding enantiomers and/or diastereomers can take place where appropriate, ing on expediency, even at the stage of the compounds (II), (III), (IV), (VII), (XVI), (XXII), (XXIII), (XXIV), (XXVI), (XXVII), (XXX) or (XXXI), which are then reacted further in separated form in accordance with the above-described process sequences. Such separation of the isomers can be carried out by conventional methods known to a person skilled in the art. In the context of the present invention, preference is given to using chromatographic methods on achiral or chiral separation phases; in the case of carboxylic acids and as intermediates or end products, separation may atively also be via diastereomeric '10 salts.
The compounds of the formulae (V), (VI), (VIII), (IX), (XI), (XII), (XIV), (XVII), , (XX), (XXI), (XXV), (XXVIJI) and (XXIX) are either commercially available or described as such in the ture, or they can be prepared in a manner obvious to the person d in the art analogously to the methods published in the literature. us detailed procedures and literature references for preparing the starting materials can also be found in the Experimental Part in the section on the preparation of the starting materials and intermediates.
The preparation of the compounds according to the ion can be illustrated in an exemplary manner by the reaction schemes below: Scheme 1 ‘0 0 LiHMDS / Pd(OAc)2/ phosphine ligand Scheme 2 HO 0 aq. NaOH -——.
I OE: P’ NaH Cl Cl Hz. pwc tBuO H2. Puc Scheme 3b Nmmm, mpmeb w 48 M R 4A R R\f-R R +R° Mg, MeOH DDQ —. _.
(BuO {BuO R' ‘ Cl Cl NPMBE NHZ [PMB h0xybenzyl].
Scheme 4 «R‘s R+Rs Pd catalyst phosphine ligand N02 CI 1 H2, PdIC tBuO Pd catalyst _.lBuO phosphine ligand NH: Cl Scheme 5a RM R68 RM >—R‘° L 3 I L iPngCl x LiCI c: cat. Cul M60 0 MeO 0 Cl > RAB 0 I LiCI, H20 L NOZBF4 DMSO > R43 H2, Pd/C L Scheme 5b iPngCl x LiCI _.MeO NPMB( )’ MeO M80 0 O 3 _Q.DD MeO MeO 0 cu Cl NH NH [PMB =p-methoxybenzy1]. .37.
Scheme 6 .u HATU / Pyridine >A In addition, the compounds according to the invention have advantageous pharmacokinetic properties, in particular with t to their bioavailability and/or duration of action after enous or oral stration.
The compounds ing to the invention are ularly suitable for the treatment and/or prevention ofcardiovascular, pulmonary, thromboembolic and fibrotic disorders.
Accordingly, the compounds ing to the invention can be used in medicaments for the treatment and/or prevention of cardiovascular disorders such as, for example, high blood pressure (hypertension), heart failure, coronary heart disease, stable and unstable angina is, pulmonary arterial hypertension (PAH) and other forms of pulmonary hypertension (PH), renal hypertension, peripheral and cardiovascular disorders, arrhythmias, atrial and ventricular arrhythmias and impaired conduction such as, for example, atrioventricular blocks degrees I-HI, supraventricular tachyarrhythmia, atrial fibrillation, atrial flutter, ventricular fibrillation, ventricular flutter, ventricular tachyarrhythmia, Torsade de pointes tachycardia, atrial and cular cxtrasystoles, AV—junctional cxtrasystoles, Sick—Sinus syndrome, syncopes, AV—nodal '1! re—entry tachycardia, Wolff-Parkinson-White syndrome, acute coronary syndrome (ACS), autoimmune cardiac disorders (pcricarditis, endocarditis, valvolitis, is, cardiomyopathies), boxer cardiomyopathy, aneurysms, shock such as cardiogenic shock, septic shock and anaphylactic shock, furthermore for the treatment and/or prevention of oembolic disorders and ischaemias such as myocardial ischaemia, myocardial infarction, stroke, cardiac rophy, transient and ischaemic attacks, preeclampsia, atory cardiovascular disorders, spasms of the coronary arteries and peripheral arteries, oedema formation such as, for example, pulmonary oedema, cerebral oedema, renal oedema or oedema caused by heart failure, peripheral circulatory disturbances, usion damage, arterial and venous thromboses, microalbuminuria, myocardial insufficiency, elial dysfunction, microvascular and macrovascular damage (vasculitis), and also to prevent restenoses, for example after thrombolysis therapies, percutaneous transluminal angioplasties (PTA), percutaneous transluminal coronary angioplasties (PTCA), heart transplants and bypass operations.
In the context of the present invention, the term heart failure includes both acute and chronic manifestations of heart failure as well as more specific or related types of disease, such as acute ensated heart failure, right heart failure, left heart failure, global e, mic cardiomyopathy, dilated cardiomyopathy, hypertrophic cardiomyopathy, idiopathic cardiomyopathy, congenital heart defects, heart valve defects, heart failure associated with heart valve s, mitral stenosis, mitral insufficiency, aortic stenosis, aortic insufficiency, tricuspid stenosis, tricuspid insufficiency, pulmonary valve stenosis, pulmonary valve insufficiency, combined heart valve s, myocardial inflammation (myocarditis), chronic myocarditis, acute myocarditis, viral ditis, diabetic heart failure, alcoholic cardiomyopathy, cardiac storage disorders, and diastolic and systolic heart e.
In on, the compounds according to the invention can also be employed for the ent and/or prevention of osclerosis, a disturbed lipid metabolism, hypolipoproteinaemias, dilipideamias, hypertriglyceridaemias, hyperlipidaemias, combined hyperlipidaemias, hyper- cholcsterolaemias, abetalipoproteinaemias, sitosterolaemia, xanthomatosis, r disease, adiposity, obesity and metabolic syndrome.
Furthermore, the compounds according to the invention can be used for the treatment and/or ion of rima and seconda Ra naud’s non of microcirculation im airments 9 p 9 claudication, tinnitus, peripheral and autonomic athies, diabetic microangiopathies, diabetic pathy, diabetic ulcers on the ities, gangrene, CREST syndrome, erythematosis, onychomycosis and rheumatic disorders.
In addition, the compounds according to the invention can be used for preventing ischaemia- and/or usion-related damage to organs or tissues and also as additives for perfusion and preservation solutions of organs, organ parts, tissues or tissue parts of human or animal origin, in particular for surgical interventions or in the field of transplantation medicine.
The compounds according to the invention are furthermore suitable for the treatment and/or prevention of kidney disorders, in particular of renal insufficiency and renal failure. In the context of the present invention, the terms renal insufficiency and renal failure comprise both acute and chronic manifestations thereof, as well as underlying or related kidney diseases such as renal hypoperfusion, intradialytic hypotension, obstructive uropathy, glomerulopathies, glomerulonephritis, acute glomerulonephritis, glomerulosclerosis, tubulointerstitial diseases, nephropathic es such as primary and congenital kidney disease, nephritis, immunological kidney diseases such as kidney graft ion and immunocomplex-induced kidney diseases, nephropathy induced by toxic nces, nephropathy induced by contrast agents, diabetic and non—diabetic nephropathy, pyelonephritis, renal cysts, nephrosclerosis, hypertensive nephrosclerosis and nephrotic syndrome, which can be characterized diagnostically for example by abnormally reduced creatinine and/or water excretion, ally raised blood concentrations of urea, nitrogen, ium and/or creatinine, altered activity of renal enzymes such as, for example, glutamyl tase, altered urine osmolarity or urine , increased microalbuminurea, macroalbuminurea, lesions on glomerulae and arterioles, tubular dilatation, hyperphosphataemia and/or need for dialysis. The present invention also ses the use of the compounds ing to the invention for the treatment and/or prevention of sequelae of renal insufficiency, such as, for example hypertension, pulmonary , heart failure, uraemia, anaemia, electrolyte disturbances (for example hypercalaemia, hyponatraemia) and disturbances in bone and carbohydrate lism.
In addition, the compounds according to the invention are suitable for the treatment and/or prevention of ers of the urogenital system such as, for example, benign prostate syndrome (BPS), benign prostate hyperplasia (BPH), benign prostate enlargement (BPE), bladder outlet obstruction (BOO), lower urinary tract syndrome (LUTS), neurogenic overactive bladder (OAB), incontinence such as, for example, mix, urge, stress or overflow incontinence (MUI, UUI, SUI, OUT), pelvic pain, and also le dysfunction and female sexual dysfunction.
The compounds ing to the invention are also suitable for the treatment and/or prevention of asthmatic disorders, chronic-obstructive pulmonary disease (COPD), acute respiratory distress syndrome (ARDS) and acute lung injury (ALI), alpha-l-antitrypsin deficiency (AATD), pulmonary fibrosis, pulmonary emphysema (for example pulmonary emphysema induced by cigarette smoke) and cystic s (CF), and also of pulmonary arterial hypertension (PAH) and other forms of pulmonary hypertension (PH) including left-heart e, HIV, sickle cell anaemia, thromboembolisms, sarcoidosis, COPD or pulmonary fibrosis—associated pulmonary hypertension.
The compounds described in the present invention also represent active compounds for controlling central nervous system diseases terized by disturbances of the NO/cGMP . They are suitable in particular for improving tion, concentration, learning or memory after cognitive impairments like those occurring in particular in association with situations/diseases/syndromes such as mild cognitive impairment, age-associated learning and memory ments, age- associated memory loss, ar dementia, craniocerebral , stroke, dementia occurring after strokes (post-stroke dementia), post-traumatic craniocerebral trauma, general concentration impairments, concentration impairments in children with learning and memory problems, Alzheimer’s disease, Lewy body dementia, ia with degeneration of the frontal lobes including Pick’s syndrome, Parkinson’s disease, progressive nuclear palsy, dementia with corticobasal degeneration, amyolateral sclerosis (ALS), Huntington’s disease, demyelinisation, le sclerosis, ic ration, Creutzfeld—Jakob dementia, HIV dementia, schizophrenia with dementia or Korsakoff’s psychosis. They are also suitable for the ent ’l) and/or tion of central nervous system disorders such as states of anxiety, tension and depression, CNS-related sexual dysfunctions and sleep disturbances, and for lling pathological disturbances of the intake of food, stimulants and addictive substances.
The compounds according to the invention are furthermore also suitable for controlling cerebral blood flow and thus represent effective agents for controlling migraine. They are also suitable for I4 '10 the prophylaxis and control of the sequelae of cerebral infarctions (Apoplexia cerebri) such as stroke, cerebral ischaemias and craniocerebral trauma. The compounds according to the ion can likewise be employed for controlling states of pain.
In addition, the compounds according to the invention have antiinflammatory action and can therefore be used as flammatory agents for the treatment and/or prevention of sepsis (SIRS), multiple organ failure (MODS, MOF), inflammatory disorders of the kidney, chronic inflammation of the bowel (TBS, Crohn's disease, tive colitis), pancreatitis, peritonitis, rheumatoid disorders, inflammatory skin diseases and inflammatory eye diseases.
The nds according to the invention are furthermore suitable for the treatment and/or prevention of fibrotic disorders of the internal organs such as, for example, the lung, the heart, the kidney, the bone marrow and in particular the liver, and also dermatological fibroses and fibrotic eye disorders. In the context of the present invention, the term fibrotic disorders includes in ular the following disorders: hepatic fibrosis, cirrhosis of the liver, pulmonary fibrosis, endomyocardial s, nephropathy, glomerulonephritis, interstitial renal s, fibrotic 'JI damage resulting from diabetes, bone marrow fibrosis and similar fibrotic disorders, scleroderma, morphea, kcloids, hypertrophic scarring, naevi, diabetic retinopathy, proliferative vitreoretinopathy and disorders of the connective tissue (for example sarcoidosis). The compounds according to the invention can also be used to promote wound healing, for lling postoperative scarring, for example as a result of glaucoma operations, and cosmetically for ageing and keratinized skin.
By virtue of their activity profile, the nds according to the invention are particularly suitable for the treatment and/or prevention of cardiovascular disorders such as heart failure, angina pectoris, hypertension and pulmonary hypertension, and also of thromboembolic disorders and ischaemias, ar disorders, disturbances of microcirculation, renal ciency, fibrotic disorders and arteriosclerosis.
The present invention further relates to the use of the compounds according to the invention for the treatment and/or prevention of disorders, ally of the aforementioned disorders.
The present invention further relates to the use of the compounds according to the invention for producing a medicament for the treatment and/or prevention of disorders, especially of the aforementioned disorders.
The present invention further relates to the use of the compounds according to the invention in a method for the treatment and/or tion of disorders, especially of the aforementioned disorders.
The t invention further s to a method for the treatment and/or prevention of disorders, especially of the aforementioned disorders, by using an effective amount of at least one of the compounds according to the invention.
The compounds ing to the invention can be employed alone or, if required, in combination with other active nds. The present invention further provides medicaments comprising at least one of the compounds according to the invention and one or more further active compounds, ally for the treatment andfor prevention of the entioned ers. Preferred examples of suitable active compound combinations include: 0 c es and NO donors, for example sodium nitroprusside, nitroglycerin, isosorbide mononitrate, isosorbide dinitrate, molsidomine or SIN-1, and inhaled NO; -42. 0 compounds which inhibit the breakdown of cyclic ine monophosphate (cGMP), such as, for example, inhibitors of phosphodiesterases (PDE) 1, 2 and/or 5, in particular PDE 5 inhibitors such as sildenafil, vardenafil and tadalafll; o NO-independent, but haem-dependent stimulators of guanylate cyclase, such as, in particular, uat and the nds described in WO 00/06568, WO 00/06569, WO 02/42301 and WO 03/095451; 0 agents having an antithrombotic effect, for example and with preference from the group of platelet aggregation inhibitors, of anticoagulants or of profibrinolytic substances; 0 active compounds which lower blood pressure, for example and preferably from the group of m antagonists, angiotensin All antagonists, ACE inhibitors, endothelin antagonists, renin inhibitors, alpha-receptor blockers, beta—receptor blockers, mineralocorticoid receptor antagonists, and of diuretics; and/or 0 active compounds which alter lipid metabolism, for example and with preference from the group of thyroid receptor agonists, cholesterol synthesis tors such as, by way of example and preferably, HMG-CoA reductase inhibitors or squalene synthesis inhibitors, of ACAT inhibitors, CETP inhibitors, MTP inhibitors, PPAR-alpha, PPAR-gamma and/0r PPAR-delta agonists, cholesterol absorption inhibitors, lipase inhibitors, polymeric bile acid adsorbents, bile acid reabsorption inhibitors and lipoprotein(a) antagonists.
Agents having antithrombotic activity preferably mean compounds from the group of platelet ation tors, of anticoagulants or of profibrinolytic substances.
In a preferred embodiment of the ion, the compounds according to the invention are administered in combination with a platelet aggregation inhibitor such as, by way of example and preferably, n, clopidogrel, idin or dipyridamol.
In a preferred ment of the invention, the compounds ing to the invention are administered in combination with a thrombin inhibitor such as, by way of e and preferably, ximelagatran, melagatran, dabigatran, bivalirudin or clexane.
In a red embodiment of the invention, the compounds according to the invention are administered in ation with a GPIIb/IIIa antagonist such as, by way of example and preferably, tirofiban or abciximab.
In a preferred embodiment of the invention, the compounds according to the invention are administered in combination with a factor Xa inhibitor such as, by way of e and preferably, rivaroxaban, apixaban, fidexaban, razaxaban, fondaparinux, idraparinux, DU-l76b, 12, YM-150, 82, EMD-503982, MCM-17, MLN-lOZl, DX 9065a, DPC 906, JTV 803, SSR- 126512 or SSR-128428.
In a preferred embodiment of the invention, the nds according to the invention are administered in ation with heparin or a low molecular weight (LMW) heparin derivative.
In a preferred embodiment of the invention, the compounds according to the ion are administered in combination with a vitamin K antagonist such as, by way of example and ably, coumarin.
Agents which lower blood pressure are preferably understood to mean nds from the group of m antagonists, angiotensin AII antagonists, ACE inhibitors, endothelin antagonists, renin inhibitors, receptor blockers, beta-receptor blockers, mineralocorticoid receptor antagonists, and the diuretics.
In a preferred embodiment of the invention, the compounds according to the invention are administered in combination with a calcium antagonist such as, by way of e and preferably, nifedipine, amlodipine, verapamil or diltiazcm.
In a preferred embodiment of the invention, the compounds according to the invention are administered in combination with an alpha-1 receptor blocker such as, by way of example and preferably, prazosin.
In a preferred embodiment of the invention, the compounds according to the invention are administered in combination with a beta receptor blocker such as, by way of e and preferably, propranolol, atenolol, timolol, pindolol, alprenolol, oxprenolol, penbutolol, bupranolol, metipranolol, nadolol, mepindolol, carazalol, sotalol, metoprolol, betaxolol, celiprolol, olol, carteolol, esmolol, labetalol, carvedilol, adaprolol, landiolol, lol, epanolol or bucindolol.
In a preferred embodiment of the invention, the compounds according to the ion are administered in combination with an angiotensin AH antagonist such as, by way of example and preferably, an, candesartan, valsartan, telmisartan or embusartan.
In a preferred embodiment of the invention, the compounds according to the invention are administered in ation with an ACE inhibitor such as, by way of example and preferably, enalapril, captopril, lisinopril, ramipril, delapril, fosinopril, quinopril, perindopril or trandopril.
In a preferred embodiment of the invention, the compounds according to the invention are administered in combination with an endothelin antagonist such as, by way of example and preferably, bosentan, darusentan, ambrisentan or sitaxsentan.
In a preferred embodiment of the invention, the compounds according to the invention are administered in ation with a renin inhibitor such as, for example and ably, aliskiren, 0 or SPF-800.
In a preferred embodiment of the invention, the compounds according to the invention are administered in combination with a locorticoid receptor antagonist such as, for example and ably, spironolactone or eplerenone.
In a preferred embodiment of the invention, the compounds according to the invention are administered in combination with a diuretic, such as, for example and ably, furosemide, bumetanide, torsemide, bendroflumethiazide, thiazide, hydrochlorothiazide, hydro- iazide, methyclothiazide, polythiazide, trichlormethiazide, chlorthalidone, indapamide, metolazone, quinethazone, acetazolamide, dichlorphenamide, methazolamide, glycerol, isosorbide, mannitol, ide or triamterene.
Agents which alter lipid metabolism are preferably understood to mean compounds from the group of CETP inhibitors, thyroid receptor agonists, cholesterol synthesis tors such as HMG—CoA reductase tors or squalene synthesis inhibitors, of ACAT inhibitors, MTP inhibitors, PPAR- alpha, PPAR-gamma and/or elta agonists, cholesterol absorption inhibitors, polymeric bile acid adsorbents, bile acid reabsorption inhibitors, lipase inhibitors and lipoprotein(a) antagonists.
In a preferred ment of the invention, the compounds according to the invention are administered in combination with a CETP inhibitor such as, by way of example and preferably, torcetrapib (CF-529 414), JJT—705 or CETP vaccine (Avant).
In a preferred ment of the invention, the compounds according to the invention are administered in combination with a thyroid receptor agonist such as, by way of example and preferably, D-thyroxin, 3,5,3'—triiod0thyronin (T3), CGS 23425 or axitirome (CGS 26214).
In a preferred embodiment of the invention, the nds according to the invention are administered in combination with an HMG-CoA reductase inhibitor from the class of the statins such as, by way of example and preferably, lovastatin, simvastatin, pravastatin, fluvastatin, atorvastatin, rosuvastatin or pitavastatin.
In a preferred embodiment of the invention, the compounds according to the invention are administered in combination with a squalene synthesis inhibitor such as, by way of example and preferably, EMS-188494 or TAK-475.
In a preferred embodiment of the invention, the nds according to the invention are stered in combination with an ACAT inhibitor such as, by way of example and preferably, avasimibe, melinamide, pactimibe, eflucimibe or SMP-797.
In a red embodiment of the invention, the compounds according to the invention are administered in combination with an MTP inhibitor such as, by way of example and preferably, implitapide, EMS-201038, R-103757 or JTT-I30.
In a preferred embodiment of the invention, the compounds ing to the ion are administered in combination with a PPAR—gamma agonist such as, by way of example and preferably, tazone or rosiglitazone.
IO In a red embodiment of the invention, the compounds according to the invention are administered in combination with a elta agonist such as, for example and preferably, GW 501516 or BAY 68-5042.
In a preferred embodiment of the invention, the compounds according to the invention are administered in combination with a cholesterol absorption inhibitor such as, by way of example and preferably, ezetimibe, tiqueside or pamaqueside.
In a preferred embodiment of the invention, the compounds according to the invention are administered in ation with a lipase inhibitor such as, by way of e and preferably, orlistat.
In a preferred ment of the invention, the compounds according to the invention are administered in combination with a polymeric bile acid adsorbent such as, by way of example and preferably, cholestyramine, colestipol, colesolvam, taGel or colestimide.
In a preferred embodiment of the invention, the compounds according to the invention are administered in combination with a bile acid reabsorption inhibitor such as, by way of example and preferably, ASBT (= IBAT) inhibitors, for example MD-7806, S-8921, AK-IOS, BARI-174l, SC—435 or SC—635.
In a preferred ment of the invention, the compounds according to the invention are administered in combination with a lipoprotein(a) nist such as, by way of example and preferably, gemcabene calcium (CI-1027) or nicotinic acid.
The present invention further provides medicaments which comprise at least one compound according to the invention, typically together with one or more inert, nontoxic, pharmaceutically suitable auxiliaries, and the use thereof for the aforementioned purposes. -46— The compounds according to the invention may act systemically and/or locally. For this purpose, they can be administered in a suitable manner, for example by the oral, parenteral, al, nasal, sublingual, l, buccal, , dermal, ermal, conjunctival, otic route, or as an implant or stent.
The compounds according to the invention can be administered in administration forms suitable for these administration routes.
Suitable administration forms for oral administration are those which work according to the prior art, which release the nds according to the ion y and/or in a modified manner and which contain the nds according to the invention in crystalline and/0r amorphized and/or dissolved form, for example tablets (uncoated or coated tablets, for example with gastric resistant or retarded-dissolution or insoluble coatings which control the e of the compound according to the invention), tablets or films/wafers which egrate rapidly in the oral cavity, films/lyophilizates or capsules (for example hard or soft gelatin capsules), sugar-coated tablets, granules, pellets, powders, emulsions, suspensions, aerosols or solutions.
Parenteral administration can bypass an absorption step (eg. intravenously, intraarterially, intracardially, intraspinally or intralumbally) or include an absorption (eg. intramuscularly, subcutaneously, utaneously, percutaneously or intraperitoneally). Administration forms suitable for parenteral administration include preparations for injection and infusion in the form of solutions, suspensions, emulsions, lyophilizates or sterile powders.
For the other administration routes, suitable examples are inhalable medicament forms (including powder inhalers, nebulizers), nasal drops, solutions or sprays, tablets, films/wafers or capsules for lingual, sublingual or buccal administration, suppositories, ear or eye preparations, vaginal es, aqueous suspensions ns, shaking mixtures), lipophilic suspensions, ointments, creams, transdermal therapeutic systems (e.g. patches), milk, pastes, foams, sprinkling powders, implants or stents.
Oral or parenteral administration is preferred, especially oral and intravenous administration.
The compounds according to the ion can be converted to the administration forms mentioned. This can be done in a manner known per se, by mixing with inert, nontoxic, pharmaceutically le excipicnts. These excipients include carriers (for example microcrystalline cellulose, lactose, ol), solvents (e.g. liquid hylene glycols), emulsifiers and dispersing or wetting agents (for example sodium dodecylsulphate, polyoxysorbitan oleate), binders (for example polyvinylpyrrolidone), synthetic and natural polymers (for example albumin), stabilizers (eg. antioxidants, for example ascorbic acid), dyes (e.g. inorganic pigments, for example iron oxides) and flavour and/or odour correctants.
In general, it has been found to be advantageous in the case of parenteral administration to administer amounts of about 0.001 to 1 mg/kg, preferably about 0.01 to 0.5 mg/kg, of body weight to achieve effective s. In the case of oral administration, the dosage is about 0.01 to 100 mg/kg, preferably about 0.01 to 20 mg/kg and most preferably 0.1 to 10 mg/kg of body .
It may nevertheless be necessary where appropriate to deviate from the stated amounts, specifically as a function of the body weight, route of administration, individual se to the active nd, nature of the preparation and time or interval over which administration takes place.
For instance, in some cases, less than the aforementioned minimum amount may be sufficient, while in other cases the upper limit mentioned must be exceeded. In the case of administration of relatively large amounts, it may be advisable to divide these into several individual doses over the course of the day.
The working examples which follow illustrate the invention. The invention is not limited to the examples.
The percentages in the tests and es which follow are, unless indicated otherwise, percentages by weight; parts are parts by weight. Solvent ratios, on ratios and concentration data for liquid/liquid solutions are based in each case on volume. - 48 _ A. Examples Abbreviations an a r abs. absolute Ac acetyl AIBN 2,2'—azobis—(2-methy1propionitrile) aq. aqueous, aqueous solution ATP adenosine 5'—triphosphate Bn benzyl Brij® hylene glycol dodecyl ether BSA bovine serum albumin Ex. example Bu butyl c concentration cat. catalytic CI chemical tion (in MS) (1 day(s) DAST diethylaminosulphur trifluoride DC thin-layer tography DCI direct chemical ionization (in MS) DDQ 2,3-dichloro-5,6-dicyano-1,4-benzoquinone de diastereomeric excess DMIF dimethylformamide DMSO dimethyl sulphoxide DTT dithiothreitol EDC N'-(3-dimethy1aminopropyl)-N-ethylcarbodiimide hydrochloride ee enantiomeric excess EI electron impact ionization (in MS) ent enantiomerically pure, enantiomer eq. equivalent(s) ESI electrospray ionization (in MS) Et ethyl GC gas tography sat. saturated GTP guanosine 5'-triphosphate h hour(s) HATU 0-(7-azabenzotriazoly1)-N,N,N', '-tetramethyluronium hexafluorophosphate HOBt 1-hydroxy-1H-benzotriazole hydrate HPLC high pressure, high performance liquid chromatography iPr isopropyl conc. concentrated LC-MS liquid tography-coupled mass spectroscopy LDA lithium diisopropylamide LiI-IMDS lithium hexamethyldisilazide um bis(trimethylsilyl)amide] Me methyl min minute(s) MS mass spectroscopy NBS N—bromosuccinimide NMP ylpyrrolidin—Z-one NMR nuclear magnetic nce spectroscopy p para Pd/C palladium on activated carbon Ph phenyl PMB p-methoxybenzyl Pr propyl Pt/c platinum on activated carbon rac racemic, racemate Rf retention index (in TLC) RP reverse phase (in HPLC) RT room temperature Rt retention time (in HPLC or GC) tBu tert—butyl TEA triethanolamine TFA trifluoroacetic acid TI-[F tetrahydrofuran UV ultraviolet spectroscopy v/v ratio by volume (of a solution) _50_ GC-MS and LC-MS methods: Method 1 (GC-MS ): Instrument: Micromass GCT, GC 6890; column: Restek RTX—35, 15 m x 200 um x 0.33 pm; constant helium flow: 0.88 ml/min; oven: 70°C; inlet: 250°C; gradient: 70°C, in —> 310°C (maintained for 3 min).
Method 2 (LC-MS 1: MS instrument type: Waters Micromass Quattro Micro; HPLC ment type: t 1100 Series; column: Thermo Hypersil GOLD 3 u 20 mm x 4 mm; mobile phase A: 1 l of water + 0.5 m1 of 50% strength formic acid, mobile phase B: 1 1 of acetonitrile + 0.5 m1 of 50% strength formic acid; gradient: 0.0 min 100% A —> 3.0 min 10% A —> 4.0 min 10% A —> 4.01 min 100% A (flow rate 2.5 ml/min) a 5.00 min 100% A; oven: 50°C; flow rate: 2 mI/min; UV detection: 210 nm.
Method 3 {LC—MS ): MS instrument type: Micromass ZQ; HPLC instrument type: HP 1100 Series; UV DAD; column: Phenomenex Gemini 3 n 30 mm x 3.00 mm; mobile phase A: 1 1 of water + 0.5 ml of 50% strength formic acid, mobile phase B: 1 l of acetonitrile + 0.5 ml of 50% strength formic acid; gradient: 0.0 min 90% A a 2.5 min 30% A —> 3.0 min 5% A A 4.5 min 5% A; flow rate: 0.0 min 1 ml/min —> 2.5 min/3.0 min/4.5 min 2 ml/min; oven: 50°C; UV detection: 210 nm.
Method 4 (LC-MS): Instrument: Micromass Quattro r with Waters UPLC Acquity; column: Thermo Hypersil GOLD 1.9 p 50 mm x 1 mm; mobile phase A: 1 1 of water + 0.5 m1 of 50% strength formic acid, mobile phase B: 1 l of acetonitrile + 0.5 ml of 50% strength formic acid; gradient: 0.0 min 90% A —> 0.1 min 90% A —> 1.5 min 10% A —> 2.2 min 10% A; flow rate: 0.33 ml/min; oven: 50°C; UV detection: 210 nm.
Method 5 {LC-MS): Instrument: Waters y SQD UPLC System; column: Waters y UPLC HSS T3 1.8 u, 50 mm x 1 mm; mobile phase A: 1 l of water + 0.25 ml of 99% strength formic acid, mobile phase B: 1 l of acetonitrile + 0.25 ml of 99% strength formic acid; gradient: 0.0 min 90% A —> 1.2 min % A a 2.0 min 5% A; flow rate: 0.40 ml/min; oven: 50°C; UV detection: 210-400 nm.
Method 6 (GC-MS): Instrument: Thermo DFS, Trace GC Ultra; : Restek RTX-35, 15 m x 200 um x 0.33 um; constant helium flow: 1.20 mlj’min; oven: 60°C; inlet: 220°C; gradient: 60°C, jn —) 300°C (maintained for 3.33 min).
Method 7 (LC—MS 2: Instrument: Waters y SQD UPLC System; column: Waters Acquity UPLC HSS T3 1.8 u, mm x 2 mm; mobile phase A: 1 l of water + 0.25 ml of 99% strength formic acid, mobile phase B: 1 1 of acetonitrile + 0.25 ml of 99% strength formic acid; nt: 0.0 min 90% A —) 1.2 min % A —> 2.0 min 5% A; flow rate: 060 ml/min; oven: 50°C; UV detection: 208-400 nm.
Method 8 {LC-MS ): Instrument: Micromass Quattro Premier with Waters UPLC Acquity; column: Thermo Hypersil GOLD 1.9 u 50 mm x 1 mm; mobile phase A: 1 1 of water + 0.5 ml of 50% strength formic acid, mobile phase B: 1 l of acetonitrile + 0.5 m1 of 50% strength formic acid; gradient: 0.0 min 97% A —> 0.5 min 97% A —> 3.2 min 5% A —> 4.0 min 5% A; flow rate: 0.3 ml/min; oven: 50°C; UV detection: 210 nm.
St in malerlulsandIntermediates: Example 1A tert—Butyl (2E/Z)-4—methoxymethylpentenoate CH 0 iH Hacks J H3C o / CH - At -70°C and under argon, 6.8 ml (96 mmol) of DMSO in 10 m1 of dichloromethane were added dropwise to a mixture of 24 ml (48 mmol) of a 2 M solution of oxalyl chloride in dichloromethane and a further 100 ml of dichloromethane, and the mixture was stirred for 15 minutes. 5.2 ml (48 mmol) of 2—methoxymethy1propan-1—ol [H. Garcia et al., Chem. Eur. J. 16 (28), 536 ], ved in 15 ml of dichloromethane, were then added se, and the mixture was stirred at —70°C for another 15 min. 22.1 ml (158 mmol) of triethylamine were added , and the reaction mixture was then stirred for another 15 min and subsequently slowly warmed to room temperature. 22 g (58 mmol) of tert-butyl (triphenyl-KS-phosphanylidene)acetate were then added, and the reaction mixture was stirred at room temperature ght. The reaction solution was then slowly added to 100 ml of ice-water, and the phases obtained were separated. The organic phase was washed twice with in each case 100 ml of water, dried over magnesium sulphate and concentrated under reduced pressure on a rotary evaporator (water bath temperature 40°C, pressure not below 150 mbar). The residue obtained was taken up in about 100 ml of diethyl ether and allowed to stand in a fridge at +3°C for 2 days. The precipitated triphenylphosphine oxide was filtered off, and the filtrate was concentrated under reduced pressure. The residue obtained was :0 purified by chromatography on silica gel (mobile phase cyclohexane/ethyl acetate 100:1 —> 50:1).
This gave 7.06 g (73% of theory) of the title compound as a colourless liquid.
GC—MS (method 6): R = 3.32 min, m/z : 218 (M+NH4)+.
The two compounds below were obtained analogously to synthesis Example 1A: -53.
Example Name/Structure/Starting materials Analytical data [err-butyl (2E)(3,3-difluorocyclobutyl)acrylate 'H-NMR (400 MHz, DMSO-d6): 8 [ppm] : 1.42 (s, 9H), 2.48- 2.64 (m, 2H, partially obscured 2A by DMSO signal), 2.70-2.84 (m, 2H), 2.90-3.04 (m, 1H), 5.84 (d, from tart—butyl (triphenyl—lS-phosphanylidene)- 1H: U = 16-38 HZ), 6.88 (dd: acetate and (3,3-difluorocyclobutyl)methanol 1H)- [CAS Reg. No. 6811282] GC-MS (Method 6): R1 = 3.42 min, m/z = 200 tent-butyl (2E)—4-cyclopropylbuten0ate (M+NH4)‘.
H3C 1 H-NMR (400 MHZ, DMSO—d6): 3A up 0 5 [ppm] : 0.04-0.02 (m, 2H), 0.33-0.40 (m, 2H), 0.63—0.75 (m, from tert butyl (triphenyl-l5-phosphany1idene)— 1H), 1.34 (s, 9H), .00 (m, acetate and 2-cyclopropylethanol 2H), 5.69-5.76 (m, 1H), 6.69- 6.79 (m, 1H).
Example 4A and Example 5A Methyl (3—amin0-4—chlorophenyl)methylpent—2-enoate methyl 3-(3-aminoch10rophenyl)methy1pentenoate Under argon, a mixture of 3.22 g (15.6 mmol) of 5—bromo-2—chloroaniline, 3.0 g (23.4 mmol) of methyl-(2E)—4—methy1pent—2-enoate, 143 mg (0.16 mmol) of tris(dibenzylidcneacetone)— dipalladium, 63 mg (0.31 mmol) of tri—tert—butylphosphine and 3.64 ml (17.2 mmol) of N,N-dicyclohexylmethylamine in 30 ml of dioxane were heated to 120°C and stirred at this temperature for three days. Both after the first and after the second day of the reaction, the same amount of palladium catalyst and phosphine ligand was added to the reaction e. The reaction mixture was then filtered through Celite, and the e was concentrated under reduced re. The residue was separated into its components by chromatography on silica gel (mobile phase cyclohexane/ethyl acetate 50:1). This gave 1.52 g of methyl (2E/Z)(3-aminochloro- )—4—methy1pentenoate (38% of theory) and 906 mg of methyl 3—(3—amino chlorophenyl)-4—methy1pent-3 -enoate (22% of theory).
Example 4A Methyl (2E/Z)(3-aminoch10rophenyl)methylpentenoate LC-MS (Method 2): K = 2.46 min, m/z = 254 (M+H)+.
'H-NMR (400 MHz, DMSO-dé): 5 [ppm] = 1.03 (d, 6H), 3.65 (s, 3H), 3.90—4.03 (m, 1H), 5.42 (br. s, 2H), 5.63 (s, 1H), 6.40 (dd, 1H), 6.69 (d, 1H), 7.16 (d, 1H).
Example 5A Methyl 3-(3-aminochlorophenyl)methy1pent-3—enoate LC—MS (Method 2): Rt = 2.28 min, m/z = 254 (M+H)+.
The ing compound was obtained analogously to Synthesis Example 4A/5A: NamelStructure/Starting materials Analytical data tert—butyl (2E/Z)—3-(3—amino-4—chlorophenyl)— 4-methoxy-4—methylpenten0ate LC-MS (Method 5): R. = 1.25 min, m/z = 326/328 (M+H)+. from tert-butyl (2E/Z)methoxymethylpent- 2-enoate and 5-br0m0-2~chloroaniline Example 7A tert—Butyl -cyclobutylacrylate $92 I: A solution of 11.1 ml (116.1 mmol) of oxalyl chloride in 50 ml of abs. dichloromethane was cooled to -78°C, and a solution of 16.5 ml (232.2 mmol) of DMSO in 50 m1 of abs. dichloromethane was added dropwise, keeping the temperature below -50°C. After 5 min, a solution of 10.0 g (116.1 mmol) of utanemethanol in 20 ml of abs. dichloromethane was added dropwise. After a further 15 min of stirring at -78°C, 80.9 ml (580.5 mmol) oftriethylamine were added. After 5 min, cooling was removed and the mixture was slowly warmed to RT, and the reaction mixture was then added to water. The mixture was ted with sodium chloride and the separated organic phase was washed twice with saturated sodium chloride solution, three times with 1 N hloric acid and three times with pH buffer solution, dried over sodium sulphate and concentrated under reduced pressure (500 mbar). This gave 6.28 g of cyclobutanecarbaldehyde as a crude t which was directly reacted further.
Steg 2: 6.4 ml (27.3 mmol) of lert-butyl oxyphosphoryl)acetate were added dropwise to a suspension, cooled to 0°C, of 1.05 g (60% in mineral oil, 26.2 mmol) of sodium hydride in a mixture of 22 ml of TH]: and 22 ml of DMF. After 30 min, the mixture was cooled to —10°C, and 2.0 g (crude, about 23.8 mmol) of cyclobutanecarbaldehyde were added in several portions. The reaction mixture was stirred at 0°C for 5 h and then slowly warmed to RT ght, subsequently added to water and extracted three times with ethyl acetate. The c phases were combined and concentrated under d pressure. The residue was purified by chromatography on silica gel (mobile phase cyclohexane/ethyl acetate 50:1). This gave 1.21 g of the target product (about 28% oftheory).
GC-MS (Method 1): R, = 3.26 min; m/z = 126 (M-C4Hg)+.
‘H—NMR (400 MHz, DMSO-dé): 5 [ppm] : 1.42 (s, 9H), .96 (m, 4H), 2.05-2.1? (m, 2H), 3.03-3.16 (m, 1H), 5.66 (dd, 1H), 6.86 (dd, 1H).
Example 8A and Example 9A tert—Butyl mino—4—chlorophenyl)-3—cyclobutylacrylate tert—butyl 3-(3-aminochlorophenyl)cyclobutylidenepropanoate 0.78 ml (5.60 mmol) of triethylamine was added to a mixture of 385.2 mg (1.87 mmol) of ochloroaniline and 510 mg (2.80 mmol) of tert-butyl (2E)cyclobutylacrylate in 2.8 ml of DMF. The mixture was evacuated three times and in each case vented with argon. After the addition of 41.9 mg (0.187 mmol) of palladium(H) acetate and 113.6 mg (0.373 mmol) of tri- 2—tolylphosphine, the reaction mixture was evacuated two more times and in each case vented with argon and then stirred at 150°C for 3 h. A further 193 mg of 5-bromo—2-chlor0aniline were then added, and the reaction mixture was stirred at 150°C for another 1 h. After g, the reaction mixture was filtered through Celite and the filter residue was washed twice with DMF. The combined filtrate was concentrated under high vacuum, and by chromatography on silica gel (mobile phase cyclohexane/ethyl acetate 60:1) the two isomeric target products were isolated from the residue. This gave 203 mg of tert-butyl minochlorophenyl)cyclobutylacrylate (35.4% of theory) and 137 mg of tert—butyl 3-(3-aminochlorophenyl)cyclobutylidene- propanoate (23.8% of theory). _ 57 _ Example 8A tert-Butyl 3—(3—amino—4-chlorophenyl)—3—cyclobutylac1’ylate H-‘CiH3 0 H30 0 LC-MS d 5): K = 1.36 min, m/z = 308 (M+H)*.
'H-NMR (400 MHz, DMSO-dé): 8 [ppm] = 1.45 (s, 9H), 1.52—1.63 (m, 1H), 1.74—1.85 (m, 3H), 2.09—2.18 (m, 2H), 4.10 (quin, 1H), 5.35-5.41 (m, 2H), 5.55 (d, 1H), 6.38 (dd, 1H), 6.66 (d, 1H), 7.16 (d, 1H).
Example 9A tert-Butyl 3-(3—aminochlorophenyl)cyclobutylidenepropanoate H) o up 0 ( LC—MS (Method 5); 11,: 1.27 min, m/z = 252 (M+H—C4H8)*.
'H—NMR (400 MHz, DMSO-dé): 8 [ppm] = 1.31 (s, 9H), 1.93 (quin, 2H), 2.72-2.86 (m, 4H), 3.12 (s, 2H), 5.18-5.24 (m, 2H), 6.42 (dd, 1H), 6.69 (d, 1H), 7.06-7.11 (m, 1H).
The following nds were obtained analogously to Synthesis Example 8A/9A: m Name/Structure/Starting materials Analytical data tert—butyl (2E/Z)—3-(3—amino—4—chlorophenyl)— lH—NMR (400 MHz, DMSO-dfi): 3-(3,3-difluorocyclobutyl)acrylate [ppm] = 1.46 (s, 9H), 2.23- 2.41 (m, 2H), 2.77-2.90 (m, 2H) 3.88-4.01 (m, 1H), 5.45 (br. s, 2H), 5.73 (d, 1H), 6.41 (dd, 1H), 10A 6.66 (d, 1H), 7.19 (d, 1H).
LC-MS (Method 7): R, = 1.37 min, m/z = 344 from tert—butyl (2E)—3-(3,3-diflu0rocyclobutyl)— acrylate and 5-bromochloroaniline tert—butyl 3-(3-aminochlorophenyl)- 3-(3,3-difluorocyclobutylidene)propanoate lH—NMZR (400 MHz, DMSO-dé): F F 8 [ppm] = 1.31 (s, 9H), 3.24 (s, 2H), 3.32-3.47 (m, 4H, partially "’51H3 obscured by H20 signal), 5.30 11A (br. s, 2H), 6.46 (dd, 1H), 6.74 H30 0 (d,1H), 7.13 (d, 1H).
LC-MS (Method 7): NH2 R. = 1.28 min, m/z = 344 from tert-butyl (2E)(3,3-difluorocyclobutyl)— acrylate and 5-bromochloroaniline Name/Structure/Starting materials Analytical data utyl (2E/Z)(3—amino—4—chlorophenyl)— ‘H—NMR (400 MHZ, DMSO-dG): 4—cyc10propy1but—2-enoate [ppm] : 0.05—0.11 (m, 2H), 0.27—0.34 (m, 2H), 0.64-0.75 (m, iH 1H), 1.45 (s, 9H), 2.91 (d, 2H), .42 (br. / s, 2H), 5.84 (s, 1H), 6.70 (dd, 1H), 6.96 (d, 1H), 7.19 (d, 1H).
NH2 LC-MS (Method 5): R, = 1.35 min, m/z = 308 fromtert-buy(E)t l 2 lopr0pylbut—2-enoate (M+H)+‘ and 5-bromochloroaniline Example 13A Methyl 3-(3-aminochlorophenyl)methylpentan0ate n), At RT, 3 solution of 6.77 g (26.7 mmol) of methyl 2E/Z)(3-aminochlorophenyl)— 4-methylpentenoate in 130 ml of methanol was added to 2.2 g (90.7 mmol) of magnesium tumings and a few grains of iodine. After about 30 min, the internal temperature sed to about 60°C. After the on on had cooled to room temperature, stirring at room temperature was continued for another 2 h. 50 m1 of saturated aqueous ammonium chloride solution were then added slowly to the dark reaction mixture, and the mixture was extracted repeatedly with diethyl ether. The combined organic phases were washed with saturated sodium bicarbonate solution and saturated sodium de solution, dried over magnesium sulphate and concentrated under reduced pressure. The residue obtained was purified by chromatography on silica gel (mobile phase cyclohexane/ethyl acetate 10:1). This gave 2.95 g (40% of theory) of the title compound as an oil. - 60 _ LC-MS (Method 5): Rt = 1.06 min; m/z = 256 GVI+H)+. lH-NMR (400 MHz, 6): 5 [ppm] = 0.69 (d, 3H), 0.87 (d, 3H), 1.67-1.80 (m, 1H), 2.44- 2.56 (m, 1H, obscured by DMSO signal), 2.57-2.66 (m, 1H), 2.69—2.77 (m, 1H), 3.46 (s, 3H), 5.15- .26 (br. s, 2H), 6.35 (dd, 1H), 6.58 (d, 1H), 7.05 (d, 1H).
The following compounds were obtained analogously to Synthesis e 13A: Name/Structure/Starting material Analytical data tert-butyl 3-(3-aminochlorophenyl)—4-methoxy- 4-rnethylpentanoate LC-MS (Method 7): 14A R, = 1.26 min, m/z = 328/330 (M+H)*. from tert—butyl (2E/Z)(3-aminoch10ropheny1)— 4-methoxymethylpentenoate utyl 3-(3-aminochlorophenyl)- 1H N'MR (400 MHz DMSO d)_ - , 6 3 -difluorocyclobutyl)propanoate [ppm] = 1.24 (s, 9H), 1.99- F F 2.17 (In, 1H), 2.19-2.40 (m, 4H), 2.46-2.57 (m, 1H, partially 0 obscured by DMSO signal), H ci" 15A 2.59—2.72 (m, 1H), 2.72-2.83 (m, "10 0 1H), 5.24 (br. s, 2H), 6.42 (dd, Cl 1H), 6.63 (d, 1H), 7.07 (d, 1H). ""2 LC—MS (Method 7): i R1 = 1.28 min, m/z = 346 from tert-butyl (2E/Z)-3—(3-aminochlorophenyl)- (M+H)*. 3 -(3 ,3 -diflu0rocyclobutyl)acrylate Example Name/Structure/Starting material Analytical data tert—butyl 3-(3-amino—4—chloropheny1)- 4—cyclopropylbutanoate Haci"H LC-MS (Method 5): 16A HJC 0 K = 1.32 min, m/z = 310 (M+H)*. from tert-butyl (2E/Z)(3-aminochlorophenyl)- 4-cyclopropylbut—2-enoate Example 17A and e 18A Methyl 3—(3—amino—4-chlor0phenyl)-4—methylpentanoate (enantiomers I and 2) By preparative HPLC on a chiral phase, 960 mg (3.75 mmol) of the racemate of methyl 3-(3- aminochloropheny1)methylpentanoate (Example 13A) were separated into the enantiomers [column: Daicel Chiralpak AD-H, 5 pm, 250 mm x 20 mm; mobile phase: isohexane/isopropanol 90:10 (v/v); flow rate: 20 ml/min; UV detection: 230 nm; temperature: 25°C]: e 17AMantiomer 1); Yield: 315 mg K = 6.90 min; chemical purity >99%; >99% ee [Columnz Daicel AD-H, 5 pm, 250 mm x 4 mm; mobile phase: ane/(isopropanol + 0.2% diethylamine) 90: 10 (V/v); flow rate: 1 ml/min; UV detection: 220 nm; temperature: 25°C].
LC-MS (Method 8): K = 2.34 min; m/z = 256 (M+H)+. 1H-NMR (400 MHz, DMSO-d6): 8 [ppm] = 0.69 (d, 3H), 0.87 (d, 3H), 1.67-1.80 (m, 1H), 2.44- 2.56 (m, 1H, obscured by DMSO signal), 2.57-2.66 (m, 1H), 2.69-2.77 (m, 1H), 3.46 (s, 3H), 5.15- .26 (br. s, 2H), 6.35 (dd, 1H), 6.58 (d, 1H), 7.05 (d, 1H).
Example 18A tenantiomer 2): Yield: 247 mg Rt = 7.76 min; chemical purity >99%; >99% ee [Columnz Daicel AD—H, 5 pm, 250 mm x 4 mm; mobile phase: ane/(isopropanol + 0.2% diethylamine) 90:10 (v/v); flow rate: 1 ml/min; UV detection: 220 nm; temperature: 25°C].
LC—MS (Method 8): R : 2.34 min; m/z : 256 (M+H)+. 1H-NMR (400 MHz, DMSO-d6): 6 [ppm] = 0.69 (d, 3H), 0.87 (d, 3H), 1.67-1.80 (m, 1H), 2.44-2.56 (m, 1H, obscured by DMSO signal), .66 (m, 1H), 2.69-2.77 (m, 1H), 3.46 (s, 3H), .15-5.26 (br. s, 2H), 6.35 (dd, 1H), 6.58 (d, 1H), 7.05 (d, 1H).
Example 19A 2-Chloroi0do-N,N-bis(4-meth0xybenzyl)aniline / CI \v N HC/0 Under argon, 12.62 g (316.16 mmol, 60% in mineral oil) of sodium hydride were suspended in 250 ml of abs. DMF and cooled to 0°C. 32 g (126.3 mmol) of 2—chloro—5-iodoaniline, dissolved in 80 ml of abs. DMF, were then slowly added se, and the mixture was stirred at 0°C for 30 min. 41 ml (303 mmol) of 1-(chloromethyl)methoxybenzene were then slowly added to the on mixture, and the mixture was subsequently warmed to room temperature. The mixture was stirred at RT overnight and then carefully poured into 150 ml of ice-water. The organic phase was separated off, and the aqueous phase was then extracted three more times with diethyl ether. The combined organic phases were dried over magnesium sulphate. After filtration, the solvent was removed under reduced pressure. The crude product obtained was purified by chromatography on silica gel (mobile phase cyclohexane/ethyl acetate 40:1). This gave 59 g of the title compound (94% of theory).
LC-MS (Method 4); R. = 1.77 min; m/z = 494/496 .
'H-NMR (400 MHz, DMSO-dé): 5 [ppm] = 3.71 (s, 6H), 4.08 (s, 4H), 6.86 (d, 4H), 7.22 (d, 5H), 7.29—7.35 (m, 2H).
Example 20A {3-[Bis(4-methoxybenzyl)amino]chlorophenyl} (1-methylcyclopropyl)methanone H30’ Under argon, 7.587 g (15.37 mmol) of 2-chloro-5—iodo-N,N—bis(4-methoxybenzyl)aniline were dissolved in 100 m1 of THF and cooled to -78°C. 7.65 ml (15.27 mmol) of a 2 M on of isopropylmagnesium chloride in l ether were then slowly added se. The reaction solution was then slowly warmed to -40°C and stirred at this temperature for 30 min. 2 g (13.97 mmol) of N—methoxy-N,l—dimethylcyclopropanecarboxamide [R. Shintani et al., Chem.
Eur. J., 15 (35), 8692-8694 (2009)], dissolved in 20 ml of THF, were then slowly added dropwise to the reaction solution. The reaction e obtained was then slowly warmed to room temperature and stirred at this temperature overnight. 50 ml of an ice-cold saturated s ammonium chloride solution were then added to the reaction mixture. After separation of the phases, the aqueous phase was extracted three more times with ethyl acetate, and the ed organic phases were dried over magnesium sulphate, filtered and evaporated to dryness. The crude product obtained was purified chromatographically on silica gel (mobile phase cyclohexane/ethyl acetate 10:1). This gave 3.977 g (63% of theory) of the title compound.
LC—MS (Method 5): RI : 1.50 min; m/Z : 2 (M+H)*.
'H—NMR (400 MHZ, DMSO—dfi): 5 [ppm] : 0.72-0.76 (m, 2H), .98 (m, 2H), 1.09 (s, 3H), 3.69 (s, 6H), 4.15 (s, 4H), 6.85 (d, 4H), 7.23 (d, 4H), 7.25—7.29 (m, 2H), 7.52-7.57 (m, 1H).
Example 21A tert—Butyl 3 - {3 -[bis(4-methoxybenzyl)amino]chlorophenyl} -3 -( l -methylcyclopropyl)- acrylate CH, 0 CH3 HJC o H30’ C: 0.84 ml (3.57 mmol) of tert-butyl (diethoxyphosphoryl)acetate was added dropwise to a suspension, cooled to 00C, of 143 mg (60% in mineral oil, 3.57 mmol) of sodium hydride in 15 ml of THF. After 30 min, 1070 mg (2.38 mmol) of s(4-methoxybenzyl)amino]-4—chlorophenyl }(1-methylcyclopropyl)methanone, ved in 10 ml of THF, were added. The cooling bath was removed, and the reaction mixture was stirred at RT overnight. 50 m1 of an ice-cold saturated aqueous ammonium de solution were then added to the reaction mixture. After separation of the phases, the aqueous phase was extracted three more times with ethyl acetate, and the combined organic phases were dried over magnesium sulphate, filtered and evaporated to dryness. The residue was purified by chromatography on silica gel e phase cyclohexane/ethyl acetate 50:1). This gave 960 mg of the target product as an E/Z isomer mixture (74% of theory).
LC-MS (Method 7): RI = 1.67 min (isomer 1), m/z = 548/550 (M+H)+; R1 = 1.70 min (isomer 2), m/z = 548/550 (M+H)‘. _ 65 _ Example 22A tert—Butyl 3- {3-[bis(4-methoxybenzyl)amino]chlorophenyl} (1—methylcyclopropyl)propanoate "209:": CH3 Hp o H3c’ on Hac’ 130 mg (1.58 mmol) of magnesium tumings and a few grains of iodine were initially charged, 865 mg (1.58 mmol) of tert-butyl (2E/Z){3-[bis(4-methoxybenzyl)amino]chloropheny1}(1- cyclopropyl)acrylate in 10 ml of methanol were added and the mixture was stirred at room ature. After about 10 min, there was a weak evolution of gas combined with a temperature increase. Using an ice bath, the temperature was kept at 35°-40°C. After the reaction had ended, m1 of a saturated s ammonium chloride solution and 20 ml of dichloromethane were added to the reaction mixture. The organic phase was then separated off and the aqueous phase was extracted three more times with in each case about 10 ml of romethane. The combined organic phases were dried over magnesium sulphate and concentrated under reduced pressure. The product was isolated from the residue by preparative RP—HPLC (mobile phase methanol/water 9:1 isocratic). This gave 159 mg of the target product (18% of theory).
LC—MS (Method 4): R = 1.91 min; m = 550/552 (M+H)+. e 23A tert—Butyl 3-(3 -aminoch10r0phenyl)(1-methylcyclopropy1)propanoate CH CH H3ci3 3 H3C 0 159 mg (0.29 mmol) of tert-butyl 3-{3-[bis(4-methoxybenzyl)amino]-4—Chlorophenyl}(1- methylcyclopropyl)propanoate were taken up in 7 m1 of dichloromethane and 1.2 ml of water. 145 mg (0.64 mmol) of chloro-5,6—dicyano-1,4-benzoquinone (DDQ) were then added, and the reaction solution was stirred at room temperature for 2 h. The reaction mixture was then added to 10 m1 of ted aqueous sodium bicarbonate solution. The phases were ted, and the aqueous phase was then extracted three more times with in each case about 10 m1 of dichloromethane. The combined organic phases were dried over magnesium sulphate and concentrated under reduced pressure. The product was isolated from the residue by preparative RP-HPLC (mobile phase methanol/water). This gave 31 mg of the target product (34% of theory).
LC—MS (Method 7): RI : 1.35 min; m/z : 310 (M+H)+.
Example 24A (4—Chloro-3 —nitr0pheny1)(cyclopropyl)methanone o \ Under argon and at -10°C, 20 g (110.7 mmol) of (4-chlorophcnyl)(cyclopropyl)methanone were added slowly to 60 ml of concentrated nitric acid. The reaction mixture was then slowly warmed to °C and stirred at this temperature for 6 h. Carefully, the reaction solution was then added with ng to about 100 m1 of ice-water. This resulted in the precipitation of a white solid which was filtered off with suction and washed repeatedly with water. The solid obtained in this manner then dried under high vacuum. This gave 24.3 g (97% of theory) of the desired t.
LC-MS (Method 7): R! = 1.06 min; m/z = 224/226 (M-H)‘. 1H—NMR (400 MHz, DMSO-d6): 8 [ppm] = 1.05-1.18 (m, 4H), 2.92—3.02 (m, 1H), 7.97 (d, 1H), 8.32 (dd, 1H), 8.66 (d, 1H).
The ing compound was ed analogously to Synthesis Example 24A: Example Name/Structure/Starting material Analytical data (4-chloronitrophenyl)(1-fluorocyclopr0pyl)- methanone LC—MS (Method 7): 25A R1 = 1.11 min, rn/z = 242 (M-H)‘. from (4-chlorophenyl)( l —fluorocyclopropyl)- methanone [preparation according to DE 3704262-A1, e ] Example 26A tert—Butyl (2E/Z)(4—chloronitrophenyl)-3 -cyclopropylacrylate CH3 0 "35k / H30 0 135 ml (57.6 mmol) of tert-butyl (diethoxyphosphoryl)acetate were added dropwise to a suspension, cooled to 0°C, of 2.3 g (60% in mineral oil, 57.6 mmol) of sodium hydride in 50 ml of THF and 50 ml of DMF. After 30 min, 10 g (44.3 mmol) of (4-chloronitrophenyl)- (cyclopropyl)methanone were added a little at a time, the cooling bath was removed and the reaction mixture was stirred at RT overnight. 50 ml of an ice-cooled saturated aqueous ammonium chloride solution were then added to the reaction mixture. After separation of the phases, the aqueous phase was extracted three more times with ethyl e and the combined organic phases were dried over magnesium sulphate, d and concentrated to dryness. The residue was purified by chromatography on silica gel (mobile phase cyclohexane —> cyclohexane/ethyl acetate 40: 1). This gave 13.4 g of the target product as an E/Z isomer e (93% of theory).
MS (DCI): m/z = 324 (M+H)+, 341 (M+NH4)+.
'H—NMR (400 MHz, DMSO-dé): 5 [ppm] = 0.32-0.39 (m, 0.5H), 0.51-0.58 (m, 1.5H), 0.79-0.87 (m, 1.5H), .96 (m, 0.5H), 1.17 (s, 6.75H), 1.47 (s, 2.25H), 1.73-1.82 (m, 0.75H), 2.81-2.90 (m, 0.25H), 5.84 (s, 0.25H), 5.88 (s, 0.75H), 7.43 (dd, 0.75H), 7.59 (dd, 0.25H), 7.72~7.78 (m, 1H), 7.81 (d, , 7.95 (d, 0.25H).
The following compounds were obtained analogously to Synthesis Example 26A: Name/Structure/Starting materials Analytical data tert-butyl (2E/Z)(4-chloronitrophenyl)( l -fluorocyclopropyl)acry1ate MS (DCI): m/z = 359 CH3 F 'H-NMR (400 MHz, DMSO- H‘Ci / d6): 5 [ppm] = 1.01-1.10(m, H50 0 2H), 1.19 (s, 7.74H), 1.31—1.41 (m, 2H), 1.51 (s, 1.26H), 6.13 NO (s, 0.86H), 6.77 (s, 0.14H), 7.55 (dd, 1H), 7.81 (d, 0.86H), from (4-chloronitropheny1)(1-fluorocyclopropyl)- 7.84 (d, 0.14H), 7.95 (d, methanone and tert—butyl (diethoxyphosphoryl)- 0.86H), 8.29 (d, 0.14H). acetate Name/Structure/Starting materials ical data ethyl (2E/Z)—3—(4-chloro—3-nitrophenyl)— 3-cyclopropyl—2—methylacrylate MS (DCI): m/z = 327 (M+NH4)+.
LC-MS (Method 7): Rt = 1.26 min; m/z = 310 (M+H)+. from (4-chloronitrophenyl)(cyclopropyl)- methanone and ethyl 2-(diethoxyphosphoryl)— propanoate Example 29A tert-Butyl 3-(3-aminoch10rophenyl)cyclopropylpropanoate CH 0 "38k, H36 0 200 mg (0.62 mmol) of tert—butyl (2E/Z)—3—(4-chloronitrophenyl)-3—cyclopropylacrylate were dissolved in 12 m1 of ethyl acetate, and 20 mg (0.06 mmol) of platinum (10% on carbon) were added. The reaction mixture was stirred at RT under an atmosphere of hydrogen at atmospheric pressure for 12 hours. The reaction mixture was then filtered off with suction through kieselguhr, and the filtrate was concentrated. The crude product was purified by chromatography on silica gel e phase cyclohexane/ethyl e 40:1). This gave 96 mg (52.1% of theory) of the target LC-MS (Method 5): R = 1.24 min; m/z = 296 (M+H)+. _ 70 _ Example 30A and Example 31A tert—Butyl 3-(3—aminoChlor0phenyl)—3-cyclopropylpr0panoate (enantiomers 1 and 2) CH 0 HJC 0 By preparative HPLC on a chiral phase, 500 mg (1.69 mmol) of the racemate of tert-butyl 3-(3- aminochlorophenyl)cyclopropylpropanoate (Example 29A) were separated into the enantiomers [columnr Daicel Chiralpak AZ-H, 5 pm, 250 mm x 20 mm; mobile phase: iso- hexane/ethanol 90: 10 (v/v); flow rate: 15 ml/min; UV detection: 220 nm; temperature: 30°C]: Example 30A fenantiomer Q: Yield: 237 mg K : 4.91 min; chemical purity >99%; >99% ee [Columnz Daicel AZ-H, 5 pm, 250 mm x 4.6 mm; mobile phase: isohexane/ethanol 90:10 (v/v); flow rate: 1 ml/min; UV detection: 220 nm; temperature: 30°C].
LC-MS (Method 5): R = 1.23 min; m/z = 296 (M+H)+.
'H-NMR (400 MHz, DMSO-dé): 5 [ppm] = .10 (m, 1H), 0.16-0.25 (m, 1H), 0.27-0.36 (m, 1H), 0.45-0.54 (m, 1H), 0.85-0.98 (m, 1H), 1.28 (s, 9H), 2.02—2.11 (m, 1H), .62 (m, 2H, partially obscured by DMSO ), 5.21 (br. s, 2H), 6.43 (dd, 1H), 6.64 (d, 1H), 7.06 (d, 1H). [011320 = -22.3°, c = 0.465, Methanol.
Example 31A iomer 2 1: Yield: 207 mg 2|.) K = 5.25 min; chemical purity >99%; >99% ee nz Daicel AZ-H, 5 pm, 250 mm x 4.6 mm; mobile phase: isohexane/ethanol 90:10 (v/v); flow rate: 1 ml/min; UV detection: 220 nm; temperature: 30°C].
LC—MS (Method 5): R[ = 1.23 min; m/z = 296 (M+H)+. lH-NlVIR (400 MHZ, DMSO-d6): 3 [ppm] = 0.02—0.10 (m, 1H), 0.16-0.25 (m, 1H), 0.27-0.36 (m, 1H), 0.45—0.54 (m, 1H), 0.85-0.98 (m, 1H), 1.28 (s, 9H), 2.02—2.11 (m, 1H), 2.43—2.62 (m, 2H, partially obscured by DMSO signal), 5.21 (br. s, 2H), 6.43 (dd, 1H), 6.64 (d, 1H), 7.06 (d, 1H).
MD" = , c = 0.330, methanol.
Example 32A tert—Butyl 3-(3-aminochlorophenyl)(1-fluorocyclopropyl)propanoate CH, 0 F H.(,‘>‘\ H.,C O \ 384 mg (1.12 mmol) of tert—butyl —3—(4—chloro—3-nitrophenyl)(1—fluorocyclopropyl)— acrylate were dissolved in 12 ml of ethyl acetate, and 38 mg (0.17 mmol) of platinum(IV) oxide were added. The reaction mixture was stirred at RT under an atmosphere of hydrogen at atmospheric pressure overnight. The reaction mixture was then d off with n through kieselguhr and the filtrate was concentrated. The product was isolated from the residue by preparative RP-I-[PLC (mobile phase methanol/water). This gave 68 mg (19% of ) of the target compound.
LC-MS (Method 7): Rt = 1.24 min; m/z = 314 (M+H)+.
Example 33A (+/—)-tert—Butyl 3-(3-amino-4—chlorophenyl)—3-cyclobutylpropanoate _ 72 _ Method A: 133 mg (9.432 mmol) of tert-butyl 3-(3-aminochloropheny1)cyclobutylidenepropanoate were dissolved in 20 ml of ethyl acetate. The solution was enated with argon, and 30 mg of 10% palladium on carbon were added. At RT, the reaction mixture was stirred under an atmosphere of hydrogen at atmospheric pressure overnight. The mixture was then filtered off through Celite, and the filtrate was concentrated under d pressure. The t was isolated from the residue by preparative C (mobile phase acetonitrile/water). This gave 67 mg of the target compound (50% of theory).
LC-MS (Method 5): Rt = 1.31 min; m/z = 310 (M+H)+. 1H—NMR (400 MHz, DMSO-dg): 5 [ppm] = 1.24 (s, 9H), 1.47—1.57 (m, 1H), 1.57-1.77 (m, 4H), 1.94-2.05 (m, 1H), 2.19 (dd, 1H), 2.31—2.40 (m, 1H), 2.43 (dd, 1H), 2.71 (td, 1H), 5.13—5.22 (m, 2H), 6.36 (dd, 1H), 6.59 (d, 1H), 7.04 (d, 1H).
Methodfig At RT, a solution of 189 mg (0.614 mmol) of tert-butyl 3—(3-amino—4—chlorophenyl)— 3—cyclobutylacrylate in 0.9 m1 of methanol was added to 39 mg (1.60 mmol) of ium turnings and a few grains of iodine. The dark reaction mixture was stirred at RT overnight and then added to water and extracted with ethyl acetate. The organic phase was washed with saturated sodium bicarbonate solution and ted sodium chloride solution, dried over magnesium te and concentrated under reduced pressure. The product was isolated from the residue by preparative RP-HPLC. This gave 57.7 mg of the target compound (30.3% of theory).
Example 34A Ethyl (2E/Z)-3 -(3-amin0—4-chloropheny1)—3 -cyclopropyl-2—methylacrylate Under argon, 2.53 g (8.17 mmol) of ethyl (2E/Z)-3—(4-ch10ronitrophenyl)cyclopropy1— ylacrylate were dissolved in 10 ml of dioxane, and 9.22 g (40.84 mmol) of tin(II) chloride dihydrate were added. The reaction mixture was then heated to 70°C and stirred at this temperature overnight. After cooling to room temperature, about 20 m1 of ethyl acetate were added and the reaction mixture was then added to about 20 ml of a 10% strength aqueous potassium fluoride solution. The resulting mixture was d vigorously for 10 min. The phases were separated, and the aqueous phase was then ted two more times with in each case 10 ml 01" ethyl acetate. The combined c phases were washed with about 50 ml of a saturated sodium chloride solution, dried over magnesium sulphate and trated under reduced re. This gave 2.2 g (96% of theory) of the target compound which was used without r purification for the next step.
LC-MS (Method 7); R. = 1.19 min; m/z = 280/282 (M+H)+.
Example 35A Ethyl 3-(3-aminochloropheny1)cyclopropy1methy1propanoate (diastereomer mixture) HO O Under argon and at RT, a solution of 2.2 g (7.86 mmol) of ethyl (2E/Z)(3-amino- 4-chlorophenyl)cyclopropyl-Z-methylacrylate in 20 ml of methanol was added to 497 mg (20.45 mrnol) of magnesium gs and a few grains of iodine. The dark reaction mixture was stirred at RT overnight and then allowed to stand under argon for two days. The reaction solution was then diluted with ethyl acetate, and 1 M hydrochloric acid was added. The mixture was stirred for 5 min and then adjusted to pH 8-9 using saturated sodium onate solution. The organic phase was separated off, and the aqueous phase was extracted two more times with ethyl acetate.
The ed organic phases were washed with saturated sodium chloride solution, dried over magnesium sulphate and concentrated under reduced pressure. The crude product was purified by chromatography on silica gel (mobile phase cyclohexane/ethyl acetate 100:1 —> 50:1 —> 20:1). This gave 1.38 g (62% of theory) of the target compound.
LC—MS (Method 5): R. = 1.13 min; m/z = 282/284 (M+H)+.
Example 36A Dimethyl (3-methy1butanylidene)malonate Under argon and at 0°C, 10 g (75.7 mmol) of dimethyl malonate in 20 m1 of chloroform were slowly added dropwise to a solution of 16.6 ml (151.4 mmol) of titanium tetrachloride in 60 ml of form. After the addition had ended, the reaction solution was stirred at 0°C for another .1. 30 min. At 0°C, 6.52 g (75.7 mmol) of ylbutanone in 20 m1 of chloroform were then added dropwise. The reaction mixture was slowly warmed to room temperature and stirred at this ature for 4 h. The reaction solution was then once more cooled to 0°C, and 30.6 ml (378.5 mmol) of pyridine in 20 ml of chloroform were added. After the addition had ended, the solution was warmed to room temperature and stirred at this temperature overnight. The reaction solution was then once more cooled to 0°C, and 50 ml of water were added slowly. The ing phases were separated, and the aqueous phase was extracted two more times with in each case about 50 ml of dichloromethane. The ed organic phases were washed with saturated sodium bicarbonate on and with saturated sodium de solution, dried over magnesium sulphate and concentrated under reduced pressure. The crude product was purified by chromatography on silica gel (mobile phase cyclohexane/ethyl acetate 20:1). This gave 9.4 g (62% of theory) of the target compound.
GC-MS (Method 1): R[ :— 3.57 min; m/z : 185 (M-CH3)+. lH-NMR (400 MHz, DMSO-dé): 5 [ppm] = 1.00 (d, 6H), 1.92 (s, 3H), 2.86-2.98 (m, 1H), 3.67 (s, 3H), 3.69 (s, 3H).
The following compounds were obtained analogously to Synthesis Example 36A: Example tructure/Starting materials Analytical data dimethyl (1—cyclobutylethylidene)malonate MS (DCI): In/z : 213 (M+H)*.
'H—NMR (400 MHz, DMSO-ds): [ppm] = .77 (m, 1H), .93 (m, 1H), 1.94—2.09 (m, 4H), 2.03 (s, 3H), 3.43—3.55 (m, 1H), 3.66 (s, 3H), 3.68 (s, 3H). from dimethyl malonate and l-cyclobutylethanone dimethyl (1-cyclopropylethylidene)malonate GC—MS (Method O 1): = 4.36 min; m/z = 198 (M)+.
H c 1" 3 \O 0/ 3 ‘H-NMR (400 MHz, DMso-dé): HSC 8 [ppm] = 0.83-0.89 (m, 4H), 1.62 (s, 3H), .20 (m, 1H), from dimethyl malonate and l-cyclopropyl- 3'67 (5’ 3H), 3-70 (S, 3H)- ethanone Example 39A Dimethyl [2-(4—chlorophenyl)methylbutanyl]malonate Under argon, 6.2 g (26 mmol) of l—chloroiodobenzene were dissolved in 50 ml of THF and cooled to —78°C. 24 ml (31.2 mmol) of a 1.3 M solution of isopropylrnagnesium chloride x lithium chloride in THF were then slowly added dropwise. The reaction solution was then slowly warmed to -40°C and stirred at this temperature for 2 h. The reaction solution was then warmed to -10°C, and 495 mg (2.6 mmol) of copper(I) iodide were added. 5 g (24.97 mmol) of dimethyl (3-methylbutany1idene)malonate, dissolved in 30 ml of THF, were then slowly added dropwise to the reaction solution. The resulting on mixture was slowly warmed to room temperature and stirred at this temperature for 1 h. The e was then cooled to 0°C, and ice-cold 1 M hydrochloric acid (pH ~ 2) was added carefully. The phases were separated, the aqueous phase was then extracted three more times with ethyl e and the combined organic phases were dried over magnesium sulphate, filtered and concentrated to dryness. The resulting crude product was initially pre-purified tographically on silica gel (mobile phase cyclohexane/ethyl acetate :1). The product was then re—purified by preparative RP—HPLC e phase methanol/water).
This gave 3.38 g (42% of ) of the target compound. 1H—NMR (400 MHz, DMSO-dfi): 5 [ppm] = 0.63-0.71 (m, 6H), 1.52 (s, 3H), 2.11—2.24 (m, 1H), 3.43 (s, 3H), 3.63 (s, 3H), 4.31 (s, 1H), 7.29-7.38 (m, 4H).
The following compounds were obtained analogously to Synthesis Example 39A: Name/Structure/Starting materials Analytical data dimethyl [1-(4-chlorophenyl)-l-cyclobutyl- ethyl]malonate 'H—NMR (400 MHz, DMSO-d6): [ppm] = 1.34-1.49 (m, 3H), 1.53 (s, 3H), 1.55-1.65 (m, 2H), 1.66-1.76 (m, 1H), 2.79-2.91 (m 1H), 3.38 (s, 3H), 3.66 (s, 3H), 4.07 (s, 1H), 7.35 (q, 4H). from 1-chloroiodobenzene and dimethyl ( l -cyclobutylethylidene)malonate M Name/Structure/Starting materials Analytical data dimethyl (1-{3-[bis(4-methoxybenzyl)amino]— I r0phenyl } - l pr0pylethyl)malonate LC—MS (Method 5): Rt = 1.53 min; m/z = 566/568 (M+H)+.
‘H-NMR (400 MHz, DMSO-d6): [ppm] = -0.16 --0.07 (m, 1H), .09 (m, 1H), 0.16-0.24 (m, 1H), 0.24—0.32 (m, 1H), 1.04 (s, 3H), 1.35—1.44 (m, 1H), 3.46 (s, 3H), 3.50 (s, 3H), 3.69 (s, 6H), HBO/O 4.06 (s, 4H), 4.15 (s, 1H), 6.83 I (d, 4H), 7.05 (dd, 1H), 7.10 (d, 1 from 2-ch10ro—5—iod0-N,N-bis(4—methoxybermy1)- 1H), 721 (d, 4H), 7.28 (d, 1H). aniline and dimethyl (1—cyclopr0pylethylidene)— malonate Example 42A Dimethyl [1 —(3-an11110-4—chlor0phenyl)cyc10propylethyl]malonate 627 mg (1.11 mmol) of dimethyl (1-{3-[bis(4-meth0xybenzy1)amino]ch10ropheny1}—1-cyclo- propylethyl)ma10nate were taken up in 60 m1 of dichloromethane and 15 m1 of water. 553 mg (2.44 mmol) of 2,3-dich10ro-5,6-dicyano-1,4-benzoquinone (DDQ) were then added, and the reaction mixture was stirred at room temperature for 2 hours. The reaction mixture was then added to about 50 m1 of saturated aqueous sodium bicarbonate solution. The phases were separated, and the s phase was extracted three more times with in each case about 10 ml of dichloromethane. The ed organic phases were dried over magnesium sulphate and concentrated under reduced pressure. The product was isolated from the e by preparative RP-HPLC (mobile phase methanol/water). This gave 283 mg of the target product (78% of ).
LC—MS (Method 5): R[ : 1.03 min; m/Z : 326/328 .
‘H—NMR (400 MHz, DMSO-dfi): 5 [ppm] = 0.11-0.18 (m, 2H), 0.31—0.39 (m, 2H), 1.12 (s, 3H), 1.40—1.49 (m, 1H), 3.53 (s, 3H), 3.57 (s, 3H), 4.10 (s, 1H), 5.20 (s, 2H), 6.61 (dd, 1H), 6.91 (d, 1H), 7.05 (d, 1H).
Example 43A Methyl 3-(4-chlorophenyl)-3,4-dimethylpentanoate 0 H30 H,c\ Cl 3.38 g (10.81 mmol) of dimethyl [2-(4-chlorophenyl)methylbutanyl]malonate, 0.92 g (21.61 mmol) of lithium chloride and 0.2 m1 of water in 10 ml of DMSO were heated under reflux for 4 h. After cooling, about 50 ml of diethyl ether were added to the reaction solution, and the phases were separated. The organic phase was washed twice with water, dried over magnesium sulphate and concentrated under reduced pressure. The crude product was purified by chromatography on silica gel (mobile phase cyclohexane/ethyl acetate 10:1). This gave 2.3 g (84% of theory) of the target compound.
GC-MS (Method 1): R, : 5.43 min; m/z = 254 (M)+.
'H-NMR (400 MHz, DMSO-dé): 6 [ppm] = 0.54 (d, 3H), 0.83 (d, 3H), 1.33 (s, 3H), 1.86-1.98 (m, If) 1H), 2.62 (d, 1H), 2.87 (d, 1H), 3.35 (s, 3H), 7.32 (s, 4H).
The ing compounds were obtained analogously to Synthesis Example 43A: Name/Structure/Starting material Analytical data MS (DCI): mfz = 284 methyl 3—(4—chlorophenyl)cyclobuty1butanoate (M+NH4)+- 1H-NMR (400 MHZ, DMSO—d5): [ppm] = 1.36 (s, 3H), 1.46— 44A - 1.58 (m, 2H), 1.58-1.67 (m, 2H), 1.67-1.78 (m, 2H), 2.45-2.55 (111, 1H, partially obscured by DMSO signal), .64 (m, from dimethyl [1-(4—ch10rophenyl)-1 -cyclobuty1- 1H), 2.81 (d, 1H), 3.41 (s, 3H), ethyl]malonate 7.28—2.35 (m, 4H). methyl 3-(3 -aminochlorophenyl)cyclopropyl- butanoate +130 LC-MS (Method 7): "10‘ 45A 0 R. = 1.12 min; m/z = 0 Cl (MJ’HY' from yl [1—(3—amin0—4—chlor0phenyl)— 1 -cyclopropylethyl]malonate Example 46A Methyl 3-(4-chlor0-3—nitrophenyl)—3,4-dimethylpentanoate ,< 2.3 g (9.03 mmol) of methyl 3-(4—chlorophenyl)—3,4-dimethylpentanoate were dissolved in 50 m1 of dichloromethane and cooled to 0°C. 1.44 g (10.8 mmol) of nitronium tetrafluoroborate were then added a little at a time. After the addition had ended, the reaction solution was initially stirred at 0°—10°C for 1 h. The mixture was then slowly warmed to room temperature and stirred at this temperature for another 2 h. The on mixture was then added to about 50 m1 of water, the phases were separated and the organic phase was dried over magnesium te. The solution was concentrated by evaporation and the residue obtained was then purified by chromatography on silica gel (mobile phase cyclohexane/ethyl acetate 20:1). This gave 2.3 g (85% of theory) of the target compound.
MS (DCI): m/z : 317 (M+NH4)+.
‘H—NMR (400 MHz, DMSO-dfi): 6 [ppm] = 0.56 (d, 3H), 0.84 (d, 3H), 1.35 (s, 3H), 1.89-2.02 (m, 1H), 2.66 (d, 1H), 3.02 (d, 1H), 3.39 (s, 3H), 7.63-7.71 (m, 2H), 7.96 (s, 1H).
The following nd was obtained ously to Synthesis Example 46A: Example Name/Structure/Starting material ical data methyl 3—(4—chloronitrophenyl)—3—cyclobutyl— GC-MS (MCthOd 6): butanoate Rt = 7.62 min; m/z = 329 (M+NH4)+. 0 HJC 'H-NMR (400 MHz, DMSO-d6): H.,C\ 5 [ppm] = 1.38 (s, 3H), 1.50- 47A 0 1.58 (m, 2H), 1.58-1.70 (m, 2H), CI 1.70-1.81 (m, 2H), 2.54 (d, 1H, N02 lly obscured by DMSO signal), 2.57-2.66 (m, 1H), 2.95 from methyl 3—(4-chlorophenyl)—3-cyclobutyl— (d, 1H), 3.44 (5, 3H), 7.62—7.70 ate (m, 2H), 7.94 (d, 1H).
Example 48A Methyl 3—(3-amino—4-chlorophenyl)—3—cyclobutylbutanoate 1.79 g (5.74 mmol) of methyl 3—(4-chloronitrophenyl)—3-cyclobuty1butanoate were dissolved in 50 ml of ethyl acetate, and about 150 mg of 10% palladium on carbon were added. At RT, the reaction mixture was d vigorously under an atmosphere of hydrogen at atmospheric pressure overnight. The mixture was then filtered through Celite, and the filtrate obtained was evaporated to dryness. The crude product was purified by chromatography on silica gel (mobile phase cyclohexane/ethyl acetate 20:1). This gave 1.36 g of the target product (84% of theory).
LC—MS (Method 7): R1 = 1.22 min; m/z : 282 . lH-NMR (400 MHz, DMSO-d6): 5 [ppm] = 1.31 (s, 3H), 1.45-1.67 (m, 4H), 1.68-1.77 (m, 2H), 2.43 (d, 1H), 2.48-2.60 (m, 1H, partially obscured by DMSO signal), 2.66 (d, 1H), 3.43 (s, 3H), .16 (br. s, 2H), 6.47 (dd, 1H), 6.73 (d, 1H), 7.04 (d, 1H).
The following compound was obtained analogously to Synthesis Example 48A: Name/Structure/Starting material Analytical data methyl 3—(3—amino-4—chlorophenyl)—3,4—dimethyl— LC—MS d 5): oate Rt : 1.11 min; m/z : 270/272 H3C (M+H)fi ‘H—NMR (400 MHz, é): [ppm] = 0.56 (d, 3H), 0.83 (d, 3H), 1.28 (s, 3H), 1.80-1.92 (m, 1H), 2.57 (d, 1H), 2.72 (d, 1H), 3.38 (s, 3H), 5.15 (br. s, 2H), from methyl 3-(4-chloronitrophenyl)- 6.48 (dd, 1H), 6.73 (d, 1H), 7.04 3 ,4-dimethylpentanoate (d, 1H).
Example 50A and Example 51A Methyl 3-(3-aminochlorophenyl)-3,4-dimethylpentanoate (enantiomers I and 2) 1700 mg (6.30 mmol) of the racemate of methyl 3-(3-aminochlorophenyl)-3,4—dimethyl- pentanoate (Example 49A) were separated into the enantiomers by preparative HPLC on a chiral phase nz Daicel Chiralpak AY-H, 5 pm, 250 mm x 20 mm; mobile phase: isohexane/isopropanol 95:5 (v/v); flow rate: 20 ml/min; UV detection: 230 nm; temperature: 25°C]. The material obtained in each case was re-purified by chromatography on silica gel (mobile phase cyclohexane/ethyl acetate 10:1).
Example 50A tenantiomer 1 1: Yield: 588 mg R, = 7.21 min; chemical purity >99%; >99% ee [Column: Daicel AY—H, 5 pm, 250 mm x 4.6 mm; mobile phase: isohexane/(isopropanol + 0.2% diethylamine) 95:5 (v/v); flow rate: 1 ml/min; UV ion: 230 nm; temperature: 30°C].
LC-MS (Method 5): K = 1.15 min; m/z = 270 (M+H)+. lH—NMR (400 MHz, é): 5 [ppm] = 0.56 (d, 3H), 0.83 (d, 3H), 1.28 (s, 3H), l.80-1.92 (m, 1H), 2.57 (d, 1H), 2.72 (d, 1H), 3.38 (s, 3H), 5.15 (br. s, 2H), 6.48 (dd, 1H), 6.73 (d, 1H), 7.04 (d, 1H). [011020 = -30°, c = 0.275, methanol.
Exa_n_1ple 51A (enantiomer 2): Yield: 499 mg R. = 8.59 min; chemical purity >99%; >96.7% ee [Column: Daicel AY-H, 5 pm, 250 mm x 4.6 mm; mobile phase: isohexane/(isopropanol + 0.2% diethylamine) 95:5 (v/v); flow rate: 1 ml/min; UV detection: 230 nm; temperature: 30°C].
LC-MS (Method 5): R. = 1.15 min; m/z = 270 (M+H)+.
'H-NMR (400 MHz, DMSO-d,): 5 [ppm] = 0.56 (d, 3H), 0.83 (d, 3H), 1.28 (s, 3H), 1.80-1.92 (m, 1H), 2.57 (d, 1H), 2.72 (d, 1H), 3.38 (s, 3H), 5.15 (br. s, 2H), 6.48 (dd, 1H), 6.73 (d, 1H), 7.04 (d, 1H). [0062" : +290, 0 : 0.270, methanol.
Example 52A and Example 53A Methyl minochlorophenyl)cyclobutylbutanoate (enantiomers J and 2) H,C\ o \ T Cl 1075 mg (3.82 mmol) of the racemate of methyl 3-(3-amin0chlorophenyl)-3~cyclobutyl- butanoate (Example 48A) were separated into the enantiomers by preparative HPLC on a chiral phase [columnz Daicel Chiralpak AY—H, 5 pm, 250 mm x 20 mm; mobile phase: isohexane/ethanol 95:5 (v/v); flow rate: 15 mlhnin; UV detection: 220 nm; temperature: 25°C]: Example 52A (enantiomer 1 ): Yield: 472 mg R' = 6.40 min; al purity >99%; >99% ee [Column: Daicel AY—H, 5 pm, 250 mm x 4.6 mm; mobile phase: isohexane/(ethanol + 0.2% diethylamine) 95:5 (v/V); flow rate: 1 ml/min; UV detection: 220 nm; temperature: 40°C].
LC-MS (Method 5): R, = 1.15 min; m/z = 282/284 (M+H)+. 1H—NMR (400 MHz, DMSO—d6): 3 [ppm] = 1.31 (s, 3H), 1.45—1.67 (m, 4H), 1.68—1.78 (m, 2H), 2.43 (d, 1H), 2.48—2.60 (m, 1H, partially obscured by DMSO signal), 2.66 (d, 1H), 3.43 (s, 3H), .16 (br. s, 2H), 6.47 (dd, 1H), 6.73 (d, 1H), 7.04 (d, 1H). ,," = 23°, c = 0.450, ol.
Example 53A genam‘iomer 2): Yield: 489 mg R. = 7.85 min; al purity >99%; >99% ee [Column: Daicel AY-H, 5 pm, 250 mm x 4.6 mm; mobile phase: isohexane/(ethanol + 0.2% diethylamine) 95:5 (v/v); flow rate: 1 ml/min; UV detection: 220 nm; temperature: 40°C]. [001320 = +2.50, 0 = 0.330, methanol.
Example 54A .‘0 1-(4-Chlorophenyl)propenone H,C\ V Cl 60 g (295.5 mmol) of 3-chloro-l-(4-chlorophenyl)pr0pan-l-one were dissolved in 900 ml of itrile. With ice bath cooling, 41.2 ml (295.5 mmol) of triethylamine were then slowly added dropwise to the on (exothermal reaction). After the addition had ended, the reaction solution was stirred at room temperature for 4 h. About one litre of water, one litre of ethyl e and about 250 m1 of saturated sodium chloride solution were then added to the reaction mixture. The phases were separated, the c phase was then dried over magnesium te and filtered and the filtrate was trated to dryness. The crude product obtained was purified by chromatography on silica gel (about 1.3 kg) (mobile phase cyclohexane/ethyl acetate 6:1). This gave 45 g of the target product (91% of theory).
‘H-NMR (400 MHz, 6): 5 [ppm] = 6.02 (d, 1H), 6.36 (dd, 1H), 7.34-7.44 (m, 1H), 7.63 (d, 1H), 8.03 (d, 2H).
Example 55A oropheny1)(2,2-difluorocyclopropy1)methanone FF Cl Under argon, 91 g (546 mrnol) of 1-(4-chloropheny1)propen—1—one, 2.293 g (54.6 mmol) of sodium fluoride and 2.41 g (10.92 mmol) of 2,6-di—tert-butyl y1phenol were heated in a 3 litre three-necked flask to 110°C and stirred at this temperature for 5 min. At an internal temperature of MOO-125°C, 183 ml (928.5 mmol) of trimethylsilyl 2,2-difluoro- 2—(fluorosulphony1)acetate were then slowly added dropwise over a period of 30-35 min to the solution (careful: evolution of gas). After the addition and the evolution of gas had ended, the reaction solution was stirred for another 20 min. After cooling, the reaction mixture was taken in several litres of ethyl acetate and extracted with saturated aqueous sodium bicarbonate solution.
The phases were separated, the organic phase was then dried over magnesium sulphate and filtered and the filtrate was trated to dryness. The crude product obtained was purified by chromatography on silica gel (about 2 kg) (mobile phase cyclohexane/ethyl acetate 10:1). This gave 63 g of the target product (53% of theory). 1H—NMR (400 MHz, DMSO-dg): 5 [ppm] = 2.04-2.14 (m, 1H), 2.21-2.31 (m, 1H), 3.98-4.09 (m, 1H), 7.65-7.70 (m, 2H), 8.06-8.11 (m, 2H).
Example 56A Methyl (2Z)(4-chlorophenyl)(2,2—difluorocyclopropy1)acry1ate methyl -(4-chlorophenyl)-3—(2,2-difluorocyclopropyl)acrylate O O ICH} anx O O FF CI FF CI 2.2 g (60% in mineral oil, 55 mmol) of sodium hydride were d with 20 ml of THF and then filtered off with n, and the filtercake was washed with 20 ml of THF. Under argon, the sodium hydride d in this manner was introduced into 200 ml of THF. The mixture was then cooled to 0°C, and 10.1 g (55 mmol) of methyl (diethoxyphosphoryl)acetate, dissolved in 10 m1 of THF, were added. After warming to room temperature, the solution was stirred for another 1 h. .15 g (19.73 mmol) of (4-chlorophenyl)(2,2-difluorocyclopropyl)methanone in 50 ml of THF were then added dropwise. After the addition had ended, the solution was heated to reflux and stirred for 2 h. The solution was then cooled to 5°C, and the mixture was poured into 400 ml of ice-water. The phases were separated, and the aqueous phase was then extracted three more times with tert—butyl methyl ether. The combined organic phases were washed successively with l M hydrochloric acid and saturated sodium de solution, dried over sodium sulphate, filtered and concentrated to dryness. The crude product obtained was purified by chromatography on silica gel (mobile phase cyclohexane/ethyl acetate 20:1 —> 8:1). The E/Z isomers were isolated in separated form. This gave 2.23 g (37% of theory) of methyl (2E)-3—(4—chloropheny1)(2,2-difluoro- cyclopropyl)acrylate and 1.6 g (24.4% of theory) of methyl (2Z)—3-(4-chloropheny1)(2,2- difluorocyclopropyl)acrylate.
Methyl (2E)-3—(4-chlorophenyl)-3—(2,2-diflu0rocyclopropyl)acrylate: 'H—NMR (400 MHz, DMSO-dfi): 6 [ppm] = 1.00—1.12 (m, 1H), 1.92-2.06 (m, 1H), 3.21-3.37 (m, 1H, partially obscured by H20 signal), 371 (s, 3H), 6.42 (d, 1H), 7.49 (d, 2H), 7.55 (d, 2H).
Methyl (ZZ)—3—(4-chlorophenyl)—3—(2,2-difluorocyclopropyl)acrylate: 'H-NMR (400 MHz, fi): 5 [ppm] : 1.83-1.96 (m, 1H), 1.97—2.09 (m, 1H), 2.76-2.88 (m, 1H), 3.51 (s, 3H), 6.10 (s, 1H), 7.23 (d, 2H), 7.46 (d, 2H).
Example 57A Methyl 3-(4-chlorophenyl)(2,2-difluorocycl0propyl)pr0panoate methyl 3—(4—chlorophenyl)—5,5—difluorohexanoate F F ch\ H C\ Cl Cl 1000 mg (3.67 mmol) of methyl (2Z)(4-chlorophenyl)(2,2—difluorocyclopropyl)acrylate were 'JI ved in 75 ml of ethyl acetate and hydrogenated in a continuous-flow hydrogenation apparatus (H-Cube, from Thales Nano, Budapest) fitted with a catalyst cartridge (10% palladium on carbon) at a flow rate of 1 ml/min and at room ature and atmospheric pressure using hydrogen. After the reaction had gone to completion, the reaction mixture was concentrated under reduced pressure. This gave 980 mg of a t mixture consisting of methyl 3—(4-Chlorophenyl)—3—(2,2— difluorocyclopropyl)propanoate and methyl 3—(4—chlorophenyl)—5,5-difluorohexanoate as a colourless oil.
GC-MS (Method 6): Rt = 5.38 min; m/z = 4/296 (M+NH4)+.
Example 58A Methyl 3-(4-chloronitrophenyl)(2,2-difluorocyclopropyl)propanoate and methyl 3-(4-chloronitr0phenyl)—5,S-difluorohexanoate H \C\ 610 mg of the mixture consisting of methyl 3-(4-chlorophenyl)-3—(2,2-difluorocyclopropyl)— propanoate and methyl 3-(4-chlorophenyl)-5,5-difluorohexanoate (Example 57A) were dissolved 2O in 12 ml of dichloromethane and cooled to 0°C. 351 mg (2.65 mmol) of nitroniumtetrafluoroborate were then added a little at a time. After the on had ended, the reaction solution was stirred at 0°-10°C for 1 h. The mixture was then slowly warmed to room temperature and stirred at this ature for a fiirther 2 h. The reaction mixture was then added to about 20 ml of water, the phases were separated and the organic phase was dried over magnesium sulphate. The solution was concentrated by evaporation and the residue ed was then purified by chromatography on silica gel e phase cyclohexane/ethyl acetate 20:1). This gave 637 mg of the mixture of the two target compounds.
GC-MS (Method 6): R = 6.74 min; m/z = 337/339/341 (M+NH4)+.
Example 59A Methyl mino—4-chlorophenyl)(2,2-difluorocyclopropyl)propanoate and methyl 3-(3-aminochlorophenyl)—5,5—difluorohexanoate F F 0 O F H"C\O .xnd H'.C\O \ Cl Cl NH2 NH2 640 mg of the mixture ting of methyl 3-(4-chloronitropheny1)(2,2-difluorocyclo- propyl)propanoate and methyl 3—(4-chloronitropheny1)-5,S-difluorohexanoate (Example 58A) were dissolved in 40 ml of ethyl acetate, and 106 mg of palladium on carbon (10%) were added.
The reaction mixture was stirred vigorously under an atmosphere of hydrogen at atmospheric pressure overnight. The mixture was then filtered h Celite, and the filtrate obtained was evaporated to dryness. The crude product was purified by tography on silica gel (mobile phase cyclohexane/ethyl acetate 4:1). This gave 361 mg of the mixture of the two target compounds.
LC—MS (Method 5): R : 0.98 min; m/Z = 290/292 (M+H)*.
Example 60A (+)—Ethyl (3R)-4,4,4-trifluoromethylbutanoate .310.
At room temperature, 133 ml (1.82 mol) of thionyl de were added slowly to 287 g (1.65 mol) of (3R)-4,4,4-trifluoromethylbutanoic acid [A. Gerlach and U. , Speciality Chemicals Magazine 24 (4), 37-38 (2004); CAS Ace-No. 1421179196] in 580 ml of ethanol. The reaction 'I' solution was then heated to 80°C and stirred at this ature for 2 h. The e was then cooled to room temperature, 250 m1 of water were added slowly and the mixture was extracted three times with in each case 150 m1 of tert—butyl methyl ether. The combined organic phases were dried over sodium te. After filtration the solvent was removed under reduced pressure at °C and a pressure of 300 mbar. The crude product was then distilled at 100 mbar and a head temperature of 65°C. This gave 225.8 g (113 mol, 74% of theory) of the title compound as a colourless liquid. 1H—NMR (400 MHz, DMSO-ds, 5/ppm): 4.10 (2H, q), 2.88-2.72 (1H, m), 2.66-2.57 (1H, 1121), 2.46-2.36 (1H, m), 1.19 (3H, t), 1.11 (3H, d).
GC-MS (Method 1): R. = 1.19 min; m/z : 184 (M)+. [011,320 = +16.1°, c = 0.41, methanol. e 61A Ethyl 4,4,4—trifluoromethy1(4-methylphenyl)butanoate (diastereomer mixture) Under argon 196.9 mg (0.88 mmol) of palladium(lI) acetate and 724.8 mg (1.84 mmol) of In 2-dicyclohexylphosphino-2'-(N,N-dimethylamino)biphenyl were initially charged in 50 m1 of anhydrous toluene. 43.8 ml (43.8 mmol) of a l M solution of lithium hexamethyldisilazide in THF were added slowly, and the reaction solution was then stirred at RT for 10 min. The on solution was then cooled to -10°C, 7 g (38.0 mmol) of (+/-)—ethyl 4,4,4—trifluoro—3-methylbutan0ate were added slowly and the mixture was stirred at —10°C for 10 min. 5 g (29.2 mmol) of 4-bromotoluene, dissolved in 50 ml of toluene, were then added dropwise, and the reaction solution was warmed first to RT and then heated to 800C. The mixture was stirred at this ature for 2 h and then cooled to RT and stirred overnight. After the reaction had ended (monitored by TLC; mobile phase cyclohexane/dichloromethane 2:1), the reaction mixture was filtered through kieselguhr, the e was washed repeatedly with ethyl acetate and dichloromethane and the combined filtrates were concentrated under reduced pressure. The crude product obtained was purified chromatographically on silica gel (mobile phase petroleum ether/dichloromethane 4:1 —> 3:1). This gave 3.91 g (14.3 mmol, 48.8% of theory) of the title compound as a colourless liquid.
‘H-NMR (400 MHz, 6, S/ppm): 7.26 (2H, d), 7.20-7.12 (2H, m), 4.17-3.95 (2H, m), 3.74 , d), 3.66 , d), 3.35—3.07 (1H, m), 2.29 (2.25H, s), 2.28 (0.75H, s), 1.17 , d), 1.11 (3H, t), 0.76 (2.25H, d).
GC—MS (Method 1): R. = 4.20 min, m/z : 275 (M+H)+ (diastereomer 1); R[ : 4.23 min, m/z : 275 (MJrH)+ (diaslereomer 2).
Example 62A Ethyl (3R)—4,4,4-trifluoro-3 —rnethyl(4-methylpheny1)butanoate (diastereomer mixture) Preparation of solution A: Under argon, 16.3 ml of a 1 M on of lithium hexamethyldisilazide in toluene were cooled to -10°C to -20°C (cooling with acetone/dry ice), and 2 g (10.86 mmol) of (+)-ethyl (3R)-4,4,4—tritluoro-3—methy1butan0ate, dissolved in 10 ml of toluene, were added slowly; during the addition, it was made sure that a temperature of -10°C was not exceeded. The solution was then stirred for another 10 min at at most -10°C.
Preparation of solution B: Under argon, 2.415 g (14.12 mmol) of 4-br0motoluene were dissolved at RT in 10 m1 of e, and 73 mg (0.33 mmol) of palladium(II) e and 269 mg (0.68 mmol) of 2-dicyclohexy1phosphino-2'-(N,N—dimethylamino)biphenyl were added. The solution was stirred at RT for 10 min.
First, the cooling bath was removed from solution A. Solution B was then slowly added dropwise to solution A, which was still cold. The combined solutions were then slowly warmed to RT and stirred at this temperature for 1 h. The reaction solution was then heated to 80°C nal temperature) and stirred at this ature for 3 h. The on solution was then slowly cooled to RT and stirred for another 12 h. Finally, the reaction e was filtered through kieselguhr, the residue was washed repeatedly with toluene and the combined filtrates were concentrated under reduced pressure. The crude product obtained was purified chromatographically on silica gel (mobile phase cyclohexane/dichloromethane 1021—) 4:1). This gave 2.35 g (79% of theory) of the title compound.
'H—NMR (400 MHz, DMSO-dé, 5/ppm): 0.76 (d, 2.13H), 1.11 (t, 3H), 1.17 (d, 0.87H), 3.07-3.30 (m, 1H), 3.66 (d, 0.7H), 3.75 (d, 0.3H), 3.94—4.15 (m, 2H), 7.12—7.20 (m, 2H), 7.23-7.29 (m, 2H).
GC—MS (Method 1): R[ = 3.88 min, m/z = 275 (M+H)+ (diastereomer 1); Rt = 3.90 min, m/z = 275 (M+H)+ (diastereomer 2).
Example 63A Ethyl (3R)—2—(4-chlorophenyl)—4,4,4-trif1u0romethy1butanoate (diastereomer mixture) H3C\| O O H3Cn,l \ FFV/Cl Preparation of solution A: Under argon, 163.9 ml of a 1 M solution of lithium hexamethyldisilazide in toluene were cooled to —10°C to —20°C (cooling using acetone/dry ice), and g (108.6 mmol) of hy1 ,4,4-trifluoro—3-methy1butanoate, dissolved in 150 m1 of toluene, were added slowly; during the addition care was taken that a temperature of -10°C was not exceeded. The solution was then stirred for another 10 min at at most -10°C.
Preparation of solution B: Under argon, 27.03 g (141.2 mmol) of 1-bromochlorobenzene were dissolved at RT in 100 m1 oftoluene, and 731 mg (3.26 mmol) ofpalladiumfll) acetate and 2.693 (6.84 mmol) of 2-dicyclohexylphosphino-2'-(N,N-dimethylamino)biphenyl were added. The solution was stirred at RT for 10 min.
First, the cooling bath was removed from solution A. Solution B was then slowly added dropwise to solution A, which was still cold. The combined solutions were then slowly warmed to RT and d at this temperature for 1 h. The reaction solution was then heated to 80°C (internal temperature) and stirred at this temperature for 3 h. The reaction solution was then slowly cooled to RT and stirred for r 12 h. The on mixture was finally filtered through kieselguhr, the residue was washed repeatedly with toluene and the combined filtrates were concentrated under reduced pressure. The crude product obtained was d chromatographically on silica gel (mobile phase cyclohexane/dichloromethane 4:1). This gave 274 g (92.98 mmol, 86% of theory) of the title compound as a yellow oil in a diastereomer ratio of 3:1.
GC—MS (Method 1): K = 4.45 min, m/z : 294 (M)+ (diastereomer I); R : 4.48 min, m/z : 294 (M)+ (diastereomer 2).
The following compounds were ed analogously to Synthesis Examples 61A and 63A: Example Name/Structure/Starting materials Analytical data ethyl (3R)-4,4,4-trifluoro(4-isopropylphenyl)- 3-methy1butanoate GC-MS (Method 1): K = 4.61 min, m/z = 302 (M)+ (diastereomer I ); Rt = 4.64 min, m/z = 302 (M)+ ereomer 2). from 1-bromoisopropylbenzene and ethyl (3R)-4,4,4-trifluoromethylbutanoate ethyl (3R)—2-(4—tert-butylphenyl)—4,4,4—trifluoro— 3-methylbutanoate GC—MS (Method 1): R‘ = 4.83 min, m/z = 317 (M+H)+ (diastereomer I); R[ = 4.85 min, m/z = 317 (M+H)+ (diastereomer 2).
MS (DCI): m/z = 334 (M+NH4)+- from 0tert—butylbenzene and ethyl (3R)-4,4,4-trifluoromethylbutanoate ethyl (3R)(4-chloromethoxyphenyl)- 4,4,4-trifluoromethylbutanoate H30\o GC-MS (Method 1): K = 5.34 min; m/z = 324/326 (MY- from 4-bromochloro—2-methoxybenzene and ethyl (3R)-4,4,4-triflu0ro-3—methylbutanoate NamelStructure/Starting materials Analytical data ethyl 2-(4-chloro—3-methylphenyl)-4,4,4-trifluoro- 3—methylbutanoate o GC-MS d 1): RI = 4.81 min, m/z = 308/310 (M)+ ereomer 1); R. = 4.84 min, m/z = 308/310 (M)+ (diastereomer 2). from 4-bromo— 1 —chloro—2—methylbenzene and ethyl 4,4,4-trifluor0—3-methylbutanoate Example 68A Ethyl (3R)(4—ethylphenyl)—4,4,4-triflu0romethylbutanoate (diastereomer mixture) 24.4 ml (24.4 mmol) of a l M solution of lithium hexamethyldisilazide in toluene were cooled to -10°C, and a solution of 3.0 g (16.29 mmol) of hyl ,4,4-trifluoromethy1butanoate in m1 of abs. toluene was added dropwise. The mixture was stirred for 10 min. At -10°C, a solution, prepared beforehand, of 3.92 g (21.18 mmol) of 1-bromoethylbenzene, 110 mg (0.49 mmol) of palladiumflI) e and 404 mg (1.03 mmol) of 2'-dicyclohexylphosphino- 2-(N,N—dirnethylamino)biphenyl in 20 ml of abs. toluene was then added se. The resulting reaction mixture was then stirred first at RT for 1 h and then at 80°C for 3 h. The mixture was then concentrated under reduced pressure and the residue was taken up in ethyl acetate and added to water. The aqueous phase was re-extracted with ethyl acetate, and the combined organic phases were washed with saturated ammonium chloride solution and saturated sodium chloride solution, dried over magnesium sulphate and concentrated under reduced pressure. The residue gave, after chromatography on silica gel (mobile phase first cyclohexane, then nt cyclohexane/ethyl _95_ acetate 200:1 —> 50:1), 3.051 g of the title compound (64.9% of theory, diastereomer ratio about 3:1).
LC—MS (Method 4): RI = 1.52 min, m/z = 289 (M+H)+ (minor diastereomer); R. : 1.54 min, m/z : 289 (M+H)+ (major diastereomer). 1H-NMR (400 MHz, DMSO-dé): major diastereomer: 8 [ppm] : 0.76 (d, 3H), 1.13 (t, 3H), 1.17 (t, 3H), 2.55—2.63 (m, 2H), 3.21-3.31 (m, 1H), 3.67 (d, 1H), 3.95-4.16 (m, 2H), 7.15-7.23 (m, 2H), 7.25-7.31 (m, 2H).
The following compounds were prepared in a similar manner from (+)-ethy1 (3R)-4,4,4—trifluoro- 3-methy1butanoate and the appropriate phenyl bromides: Example 69A Ethyl ,4,4-trifluoro—3—methy1(4-Viny1phenyl)butanoate (diastereomer mixture) F F /CHI GC-MS (Method 1): R[ = 4.64 min and 4.66 min; in each case m/z = 286 (M)+. lH—NMR (400 MHz, DMSO-dé): major diastereomer: 5 [ppm] : 0.79 (d, 3H), 1.12 (t, 3H), 3.22—3.32 (m, 1H), 3.73 (d, 1H), 3.99-4.17 (m, 2H), 5.28 (d, 1H), 5.84 (d, 1H), 6.72 (dd, 1H), 7.34-7.40 (m, 2H), 7.45-7.51 (m, 2H).
Example 70A Ethyl (3R)-4,4,4-trifluoro-Z-(4-fluorophenyl)methylbutanoate ereomer mixture) GC-MS (Method 1): K = 3.63 min, m/z = 278 (M)+ (minor diastereomer); K = 3.66 min, m/z = 278 (M)+ (major diastereomer). 1H-NMR (400 MHZ, DMSO-dg): major diastereomer: 5 [ppm] = 0.77 (d, 3H), 1.12 (t, 3H), 3.23-3.30 (m, 1H), 3.79 (d, 1H), 4.01-4.14 (m, 2H), 7.19-7.24 (m, 2H), 7.43-7.47 (m, 2H).
Example 71A Ethyl (3R)—2-(4—ch10ro—3-fluorophenyl)—4,4,4-triflu0r0—3—methy1butan0ate ereomer mixture) H3C\| O O HJCII, F F F on GC-MS (Method 1): RI : 4.33 min and 4.36 min; in each case m/z = 312 (M)+. 1H—NMR (400 MHZ, DMSO-dg): major diastereomer: 5 [ppm] : 0.80 (d, 3H), 1.08-1.19 (m, 3H), 3.34-3.41 (m, 1H), 3.88 (d, 1H), 4.01-4.18 (m, 2H), 7.28-7.34 (m, 1H), .64 (m, 2H).
Examgle 72A Ethyl (3R)[4-(2,2-diflu0rocyclopropyl)phenyl]-4,4,4-trifluoromethylbutanoate o/\CH3 H .c " ‘ F 1.58 g (5.52 mmol) of ethyl (3R)-4,4,4-trifluoro-3—methyl-2—(4-vinylphenyl)butanoate, 23 mg (0.55 mmol) of sodium fluoride and 24 mg (0.11 mmol) of 2,6-di-tert-butyl 4-rnethylphenol were heated to 110°C and stirred for 5 minutes. 1.9 ml (9.38 mmol) of trimethylsilyl 2,2-difluoro- 2—(fluorosulphony1)acetate were then slowly added dropwise, and the mixture was stirred at 110°C for 60 min (careful: evolution of gas after about 30 min). After cooling to room temperature and addition of ethyl acetate and saturated aqueous sodium onate solution, the organic phase was ted off, dried over magnesium sulphate, filtered and trated to dryness. The crude product was purified chromatographically on silica gel (mobile phase cyclohexane/— dichloromethane 4:1). This gave 1.5 g of the title compound (81% of theory).
GC—MS (Method 1): K = 4.99 min, m/z = 336 (M)+ (diastereomer I); R = 5.01 min, m/z = 336 (M)Jr (diastereomer 2).
MS (DCI): m/z = 354 (M+NH4)*.
Example 73A Ethyl bromomethyl)phenyl]-4,4,4—trifluoro-3—methylbutanoate / o v OACH.‘ F J 2.25 g (8.2 mmol) of ethyl 4,4,4—trifluoromethy1—2-(4—methylphenyl)butanoate, 1.53 g (8.6 mmol) of N—bromosuccinimide and 67 mg (0.41 mmol) of 2,2'—azobis-(2-methylpropanenitrile) in 36 m1 of trichloromethane were stirred under reflux overnight. After the reaction had gone to tion, the succinimide was filtered off, the filter e was washed with dichloromethane and the filtrate was concentrated under reduced pressure. The crude product was purified chromatographically on silica gel (mobile phase cyclohexane/ethyl acetate 40:1). This gave 2.667 g (7.5 mmol, 92% of theory) of a yellowish oil.
GC-MS (Method l): R[ = 5.72 min, m/z : 373 (M—Br)+ (diastereomer I); K : 5.74 min, m/z : 373 (M-Br)+ (diastereomer 2).
Example 74A Ethyl 4,4,4—trifluoromethyl[4-(2,2,2-trif1uoroethyl)phenyl]butanoate 529 mg (2.78 mmol) of copper(I) iodide and 4 g (20.82 mmol) of methyl fluoro- 2-(fluorosulphonyl)acetate were added to 3.77 g (10.67 mmol) of ethyl 2-[4-(bromo- methyl)phenyl]-4,4,4-trifluoromethylbutanoate in 40 ml of l-methylpyrrolidinone, and the e was d at 80°C overnight. After the reaction had ended, the reaction solution was slowly poured into 100 ml of ice-water. The e obtained was then extracted three times with diethyl ether. The ed organic phases were dried over magnesium sulphate. After filtration, the solvent was removed under reduced pressure. The crude product obtained was purified chromatographically on silica gel (mobile phase cyclohexane/dichloromethane 4:1). This gave 1.48 g (4.32 mmol, 41% of theory) of the title compound as a yellowish oil.
GC—MS (Method 1): RI 2 4.06 min, m/z : 342 (M)+ (diastereomer 1); R1 : 4.09 min, m/z : 342 (M)+ (diastereomer 2).
MS (DCI): m/z = 360 (M+NH4)+.
Example 75A Methyl (4-ch10rophenyl)(3-oxocyclopentyl)acetate Under argon, 14.8 ml (105.6 mmol) of diisopropylamine were initially charged in 150 ml of THF, the mixture was cooled to -30°C and 42.3 ml (105.75 mmol) ofa 2.5 M solution of n-butyllithium in hexane were added slowly. The reaction solution was then warmed to -20°C, 15 g (81.25 mmol) of methyl (4-chlorophenyl)acetate, dissolved in 90 ml of THF, were added slowly and the mixture was stirred at this temperature for 2 h. The reaction solution then cooled to -78°C, and 7.2 ml (861 mmol) of 2-cyclopentenone, dissolved in 60 ml of THF, were added slowly. After the addition had ended, the solution was stirred at -78°C for another hour. After TLC (mobile phase exanefethyl acetate 9:1), saturated aqueous ammonium chloride solution was added and the product was taken up in ethyl acetate. The aqueous phase was extracted twice with ethyl acetate.
The combined c phases were dried over ium sulphate. After filtration, the solvent was removed under d pressure. The crude product was purified chromatographically on silica gel (mobile phase exane/ethyl acetate 4:1). This gave 15.65 g (58.67 rnmol, 72% of theory) of the title nd as a yellowish oil.
GC-MS (Method 1): Rt = 7.02 min, m/z = 266 (M)+ (diastereomer I); R[ = 7.04 min, m/z = 266 (M)+ (diastereomer 2).
MS (DCI): m2 = 284 (M+NH4)+.
Example 76A Methyl orophenyl)(3,3-difluorocyclopentyl)acetate Under argon, 82.5 ml (82.14 mmol) of a 50% strength solution of 1,1'-[(trifluoro-2t4-sulphanyl)- imino]bis(2-methoxyethane) (Desoxofluor) in THF, diluted with 200 ml of toluene, were initially charged and cooled to 50C, and 744 pl (5.87 mmol) of a l M solution of boron trifluoride/diethyl ether complex were added slowly. The mixture was stirred at 5°C for 2 h. 15.65 g (58.67 mmol) of methyl (4-chlorophenyl)(3-oxocyclopentyl)acetate, dissolved in 200 m1 of toluene, were then added slowly, and the reaction solution was uently warmed to 55°C and stirred at this temperature for 60 h. The reaction mixture was then added to a mixture, cooled to 00C, consisting of 100 ml of e and 100 ml of 2 M aqueous sodium hydroxide solution. The c phase was separated off, and the aqueous phase was extracted three more times with ethyl acetate. The combined organic phases were dried over sodium sulphate. After filtration, the solvent was d under reduced pressure. The crude product was purified chromatographically on silica gel e phase cyclohexane/ethyl acetate 7:1). This gave 13.24 g (45.86 mmol, 78% of theory) of the title compound as a colourless oil.
MS (DCI): m/z = 306 (M+NH4)+.
GC-MS (Method 1): RI = 5.83 min, m/z = 288 (M)+ (diastereomer 1); R1 = 5.86 min, m/z = 288 (M)+ ereomer 2).
Example 77A S,3R)—2—(4-Ch1orophenyl)—4,4,4-trifluoro—3—methylbutanoic acid Method A: .086 g (17.26 mmol) of ethyl (3R)(4-chlorophenyl)-4,4,4-trifluoromethylbutanoate were ved in 68 m1 of dioxane, and 34 ml of 1 N aqueous sodium hydroxide solution were added.
The reaction was stirred at 50°C for 2 h. The reaction mixture was then acidified with 1 N hydrochloric acid to pH 1 and repeatedly extracted with dichloromethane. The combined organic phases were washed with saturated sodium chloride solution, dried over sodium sulphate and concentrated under reduced pressure. This gave 3.9 g (14.63 mmol, 85% of theory, 83% de) of the target compound. lH—NMR (400 MHz, DMSO-dg, S/ppm); 12.95-12.73 (1H, br. s), 7.49-7.34 (4H, m), 3.68 (1H, d), 3.31-3.18 (1H, m), 1.20 (0.25H, d), 0.78 (2.75H, d).
GC-MS (Method 1): Rt = 4.85 min; m/z = 266 (M)+. [001320 = +5120, c = 0.41, methanol.
Method B: 16.28 g (55.24 mrnol) of ethyl —(4-chlorophenyl)—4,4,4-trifluoromethylbutanoate were dissolved in 220 ml of dioxane, and 110.5 ml of 1 N aqueous sodium hydroxide solution were added. The on was stirred at 50°C for 3 h. The e was then removed on a rotary evaporator, and the aqueous solution that remained was, with ice-cooling, neutralized with 1 N hydrochloric acid (~ pH 7). The precipitated solid was filtered off with suction and dried under high vacuum at 40°C overnight. This gave 9.2 g of the target compound as a slightly beige solid (fraction 1; 62.5% of theory, 94% de). The filtrate was acidified by further addition of 1 N hydrochloric acid (~ pH 1) and stirred overnight. Once more, the precipitated solid was filtered off with suction and dried under high vacuum at 40°C overnight. This gave a further 3.46 g of the target nd as a white solid ion 2; contaminated with 10% of the second diastereomer).
The aqueous filtrate that remained was edly extracted with dichloromethane, and the ed organic phases were dried over magnesium sulphate and concentrated under reduced pressure. This gave another 2.44 g of the target compound as a colourless oil (fraction 3; contaminated with 15% of the second diastereomer). Fractions 2 and 3 were finally combined and re-purified chromatographically on silica gel (mobile phase cyclohexane/ethyl acetate 10:1). This gave 3.7 g of the target compound as a white solid ion 4; 25% of , >95% de).
Fraction 1 (= sodium salt of the title compound): lH-NMR (400 W12, DMSO'dfi, 5/ppm): 7.44-7.33 (4H, m), 3.61 (1H, d), 3.30-3.15 (1H, m), 1.17 (0.09H, d, minor diastereomer), 0.76 (2.91H, (1, major diastereomer).
Fraction 4: 1H-NMR (400 MHz, DMSO-a’fl, 5/ppm): 13.03-12.69 (br. s, 1H), 7.47-7.39 (4H, m), 3.68 (1H, d), 3.39—3.17 (1H, m, partially obscured by H20 signal), 0.77 (3H, d).
Compounds listed in the table below were prepared in an analogous manner: Name/Structure/Starting material Analytical data GC-MS (Method 1): (28,3R)—4,4,4—trifluoromethyl-2—(4-methyl— 11,: 4.17 min; m/z : 246 (M)+. phenyl)butanoic acid 'H-NMR (400 MHz, DMSO-dé, HO O 8/ppm): 0.75 (d, 2.75H, major H30]", diastereomer), 1.19 (d, 0.25H, minor diastereomer), 2.29 (s, 3H), F F 3.15—3.28 (m, 1H), 3.55 (d, 0.915H, major diastereomer), 3.60 from ethyl ,4,4-trifluoromethyl- (d, 0.085H, minor diastereomer), 7.17 (d, 2H), 7.24 (d, 2H), 12.68 2-(4-rnethy1phenyl)butanoate (br. s. 1H) (83% de). (2S,3R)(4—ethylphenyl)—4,4,4-trifluoro- 3-methylbutanoic acid LC—MS (Method 5); H0 0 R, : 1.06 min; rnfz : 259 (M—H)’.
‘H-NMR (400 MHz, DMSO-dé, H30/1,, "I" 8/ppm): 0.75 (d, 3H), 1.17 (t, 311), F F 2.59 (q, 2H), 3.14—3.29 (m, 1H), 3.56 (d, 1H), 7.20 (d, 2H), 7.27 (d, from ethyl -(4-ethylphenyl)—4,4,4-trifluoro— 2H), 12.86(br.s,1H). 3-methylbutanoate (28,3R)(4—chlor0fluorophenyl)- LC-MS (Method 5): 4,4,4-trifluoro—3-methylbutanoic acid R, = 1.06 min; rn/z = 259 (M-H)‘.
'H—NMR (400 MHz, DMSO—dfi, /ppm): 0.80 (d, 2.75H, major 80A diastereomer), 1.19 (d, 0.25H, minor diastereomer), 3.21-3.37 (m, 1H, lly obscured by H20 signal), 3.75 (d, 1H), 7.29 (dd, from ethyl (3R)(4-chloro—3 -fluorophenyl)~ 1H), 7.51 (dd, 1H), 7.60 (t, 1H), 4,4,4-trifluoro-3—methylbutanoate 1297 (br. s, 1H) (83% de). tructure/Starting material Analytical data (2S,3R)—4,4,4—trifluoro—2-(4-fluorophenyl)— LC—MS (Method 5): 3-rnethylbutanoic acid Rt 2 0-97 min; m/z = 249 (M‘H)_~ I ‘H-NMR (from sodium salt; 400 MHz, DMSO-dé, 8/ppm): 81A 0.76 (d, 2.73H, major diastereomer), 1.19 (d, 0.27H, minor diastereomer), 3.16-3.31 (m, 1H), 3.66 (d, 1H), 7.15-7.23 from ethyl (3R)—4,4,4-trifluoro— (m, 2H), 46 (m, 2H) (82% 2-(4—flu0rophenyl)—3—methylbutanoate de). (2S,3R)-4,4,4-trifluoro(4-isopropy1pheny1)- 3-methylbutanoic acid 1H—NMR (400 MHz, DMSO-dé, /ppm): 12.56 (1H, br. s), 7.25 "JG 0 (4H, q), 3.56 (1H, d), 3.28-3.16 82A (1H, m), 2.94-2.81 (1H, m), 1.19 (6H, d), 0.75 (3H, (1).
., F H30 "’ F GC-MS (Method 1): Rt = 4.93 min; m/z = 274 (M)+. from ethyl (3R)-4,4,4—trifluoro- 2-(4-isopropylpheny1)methy1butanoate Name/Structure/Starting material Analytical data (2S,3R)(4-tert—butylphenyl)-4,4,4-triflu0ro— ylbutanoic acid GC—MS (Method 1): K = 5.15 min; m/z = 288 (M)+. from ethyl (2S,3R)(4—tert—butylphenyl)- 4,4,4-trifluoromethy1butanoate 4,4,4—trifluoromethyl[4-(2,2,2-trifluoro- ethy1)phenyl]butanoic acid 'H—NMR (400 MHz, DMSO-dé, a/ppm): 12.95—12.59 (1H, br. s), 1 7.37 (4H, q), 3.70-3.57 (3H, m), 3.30-3.18 (1H, m), 0.76 (3H, d).
GC-MS (Method 1): Rt = 4.45 min; m/z = 315 (M+H)+. from ethyl 4,4,4-trifluoro—3-methyl- 2-[4—(2,2,2-trifluoroethyl)phcnyl]butanoate Name/Structure/Starting material ical data (4—chlorophenyl)(3,3—difluorocyclopentyl)acetic 1H—N1\/1R(400 MHz, DMSO-d6, acid 5/ppm): 12.59 (1H, br. s), 7.38 (4H, q), 3.51 (0.5H, d), 3.48 (0.5H, d), 2.77-2.60 (1H, m), 2.42- 2.27 (0.5H, m), 2.26-1.20 (5.5H, GC-MS (Method 1): Rt = 6.33 min, rn/z = 274 (M)+ (diastereomer 1); from methyl (4-chlorophenyl)(3,3-diflu0ro- R. 2 6.38 min, m/z = 274 (M)+ cyclopentyl)acetate (diastereomer 2). (2S,3R)(4-chloromethoxyphenyl)- 4,4,4-tr1fluoromethylbutanoic acid 'H-NMR (400 MHz, é, H3C\ /ppm): 12.91-12.71(1H,br.s), | Cl 7.41 (1H, d), 7.18 (1H, d), 6.98 (1H, dd), 3.86 (3H, s), 3.66 (1H, d), 3.40—3.19 (1H, m), 0.79 (3H, LC-MS (Method 2): R. = 2.20 min; m/z = 295/297 (M—H)‘. from ethyl (3R)(4-chloro-3 -methoxyphenyl)- 4,4,4-trifluor0methylbutanoate Name/Structure/Starting material ical data 2-(4-chloromethylphenyl)-4,4,4-trifluoro- 3-methylbutanoic acid GC-MS (Method 1): R. = 5.20 min; mfz = 280/282 (M)+ H3O OH (diastereomer 1 ); H30 R = 5.23 min; m/z = 280/282 (M)+ (diastereomer 2). from ethyl 2-(4-chloromethylphenyl)— 4,4,4-trifluoromethylbutanoate )[4-(2,2-difluorocyclopropyl)phenyl]- 4,4,4-trifluoromethylbutan0ic acid (diastereomer mixture) LC-MS (Method 5): K = 1.09 min; m/z = 307 (M-H)‘.
‘H-NMR (400 MHz, DMSO-dé): 8 [ppm] = 0.76 (d, 3H), 1.86-2.04 (m, 2H), 2.92-3.06 (m, 1H), 3.18- 3.29 (m, 1H), 3.61 (d, 1H), 7.27 (d, 2H), 7.34 (d, 2H), 12.72 (br. s, 1H). (from ethyl (25,3R)[4-(2,2-difluorocyclo- propy1)phenyl]—4,4,4-trifluoro- 3-methylbutanoate) Example 89A (3R)(4-Ethylphenyl)-4,4,4-trifluoromethylbutanoic acid (diastereomer mixture) HO 0 3.0 g of ethyl (3R)(4-ethy1phenyl)-4,4,4-trifluoromethy1butanoate (purity about 88%, about 9.16 mmol; diastereomer mixture) were dissolved in the mixture of in each case 12.4 ml of methanol, THF and water, and 5.49 g (137.35 mmol) of sodium hydroxide were added a little at a time. The reaction mixture was stirred at 400C for 9 h. After g, the volatile solvents were ntially removed under reduced pressure and the residue was diluted with water. The mixture was acidified by addition of hydrochloric acid, and the aqueous phase was extracted three times with ethyl acetate. The combined organic phases were dried over sodium te, and concentrated under reduced pressure, and the residue was dried under high vacuum. This gave 2.61 g of the title compound as a crude product which was not purified any further (diastereomer ratio about 9:1).
LC-MS (Method 5): R1 = 1.08 min, m/z = 259 (M-H)‘ (minor reomer); Rt = 1.11 min, m/z = 259 (M-H)‘ (major diastereomer). lH-NMR (400 MHZ, DMSO-d6): major reomer: 5 [ppm] = 0.76 (d, 3H), 1.17 (t, 3H), 2.54- 2.66 (m, 4H), 3.10—3.29 (m, 1H), 3.56 (d, 1H), 7.14—7.22 (m, 2H), 7.22—7.32 (m, 2H), 12.58 (br. 1H).
In a comparable manner (reaction temperature: RT to +40°C; reaction time: 9—12 h), the following carboxylic acids were prepared from the corresponding esters: Example 90A (3R)-4,4,4-Trifluoro-2—(4-fluorophenyl)methylbutanoic acid ereomer mixture) HO O Diastereomer ratio about 9:1. 1H-NMR (400 MHZ, DMSO-d6): major diastereomer: 5 [ppm] = 0.77 (d, 3H), 3.18-3.30 (m, 1H), 3.67 (d, 1H), 7.17-7.24 (m, 2H), 7.39-7.47 (m, 2H), 12.78 (br. s, 1H).
Example 91A -(4-Chlorofluorophenyl)—4,4,4-trifluoro—3—methy1butanoic acid (diastereomer mixture) ~IOX- HO O Diastereomer ratio about 1:1.
GC-MS (Method 1): K = 4.79 min; m/z = 284 (M)+. 1H-NMR (400 MHz, DMSO-d6): both diastereomers: 8 [ppm] = 0.80/ 1.19 (each d, 3H), .29 (m, 1H), 3.74/377 (each dd, 1H), 7.28 (d, 1H), 7.43-7.65 (m, 2H), 12.91/1324 (each br. s, 1H).
Examples 92A — 95A (4-Chlorophenyl)(3,3-difluorocyclopentyl)acetic acid (isomers 1 — 4) HO 0 By preparative HPLC on a chiral phase, 4 g (14.56 mmol) of the diastereomer e of (4-chlorophenyl)(3,3-difluorocyclopentyl)acetic acid (Example 85A) were separated into the four enantiomerically pure diastereomers [columnz Daicel Chiralpak AD-H, 5 pm, 250 mm x 20 mm; mobile phase: isohexane/(ethanol + 0.2% trifluoroacetic acid + 1% water) 95:5 (v/v); flow rate: ml/min; UV detection: 230 nm; temperature: 25°C]: Example 92A r 1 ): Yield: 682 mg Rl : 8.12 min; chemical purity >94% [Colurrmz Daicel AD-H, 5 pm, 250 mm x 4.6 mm; mobile phase: isohexane/(ethanol + 0.2% trifluoroacetic acid + 1% water) 95:5 (v/v); flow rate: 1.25 ml/min; UV detection: 230 nm; temperature: 30°C]. .‘0 LC—MS (Method 5): Rt = 1.03 min; m/z = 273 (M-H)‘. lH—NMR (400 MHz, DMSO-a'6): 5 [ppm] = 1.46-1.82 (m, 3H), 1.96-2.27 (m, 3H), 2.62-2.77 (m, 1H), 3.50 (d, 1H), 7.35 (d, 2H), 7.41 (d, 2H), 12.60 (br. s, 1H). [001320 = —54.2°, c = 0.490, methanol. e 93A {isomer 2 1: Yield: 543 mg K = 9.53 min; chemical purity >97% [Columnt Daicel AD-H, 5 pm, 250 mm x 4.6 mm; mobile phase: isohexane/(ethanol + 0.2% trifluoroacetic acid + 1% water) 95:5 (v/v); flow rate: 1.25 mI/min; UV detection: 230 nm; temperature: 30°C].
LC-MS (Method 5): K = 1.03 min; m/z = 273 (M-H)’.
‘H—NMR (400 MHz, DMSO—dfi): 5 [ppm] = .82 (m, 3H), .27 (m, 3H), 2.63—2.77 (m, 1H), 3.50 (d, 1H), 7.35 (d, 2H), 7.41 (d, 2H), 12.61 (br. s, 1H). [011.320 : +53.0°, c = 0.375, methanol.
Example 94A {isomer 3 ): Yield: 530 mg Rt = 10.36 min; chemical purity >92% [Columnz Daicel AD-H, 5 11m, 250 mm x 4.6 mm; mobile phase: isohexane/(ethanol + 0.2% trifluoroacetic acid + 1% water) 95:5 (V/v); flow rate: 1.25 nil/min; UV detection: 230 nm; temperature: 30°C].
LC-MS (Method 5): RI = 1.04 min; m/z = 273 (M-H)‘.
'H—NMR (400 MHz, DMSO—dé): 5 [ppm] = 1.21—1.34 (m, 1H), 1.34—1.45 (m, 1H), 1.76—2.17(m, 3H), 2.27—2.42 (m, 1H), 2.60—2.75 (m, 1H), 3.49 (d, 1H), 7.35 (d, 2H), 7.41 (d, 2H), 12.60 (br. s, 1H). [011,320 = -61.0°, c = 0.340, methanol. e 95A (isomer 4 1: Yield: 560 mg K = 11.35 min; al purity >9l% [Column: Daicel AD-H, 5 pm, 250 mm x 4.6 mm; mobile phase: isohexane/(ethanol + 0.2% trifluoroacetic acid + 1% water) 95:5 (v/v); flow rate: 1.25 ml/min; UV detection: 230 nm; temperature: 30°C].
LC—MS (Method 5): R[ = 1.04 min; m/z = 273 .
’H-NMR (400 MHz, DMSO-dfi): 5 [ppm] = 1.21—1.34 (m, 1H), 1.34-145 (m, 1H), 1.77-2.17 (m, 3H), .42 (m, 1H), 2.60-2.75 (m, 1H), 3.49 (d, 1H), 7.35 (d, 2H), 7.41 (d, 2H), 12.59 (br. s, 1H). [011,320 = +56.4°, c = 0.485, methanol.
Example 96A Methyl 3-(4-chloro-3 - { [(2S,3R)(4-chlorophenyl)-4,4,4-trifluoromethylbutanoyl]amino}- phenyl)methylpentanoate (diastereomer 1) F F Cl 328 mg (1.23 mmol) of (ZS,3R)(4-chlorophenyl)-4,4,4-trifluoromethylbutanoic acid were dissolved in 17.5 ml of dichloromethane, 263 mg (1.97 mmol) of l-chloro-N,N,2—trimethylprop— l—ene—l—amine were added and the mixture was stirred at room temperature for 30 min. 299 pl (3.7 mmol) of pyridine and 315 mg (1.23 mmol) of methyl 3-(3-amino—4—chlorophenyl)—4—methyl— pentanoate (enantiomer 1; Example 17A) were then added, and the reaction mixture was stirred overnight. The reaction mixture was then concentrated under reduced re and the crude product obtained was purified directly by preparative RP-HPLC (mobile phase ol/water 80:20). This gave 237 mg of the target compound (38% of theory).
LC-MS (Method 5): R. = 1.43 min; m/z = 504/506 (M+H)+. 1H-NMR (400 lVH-Iz, DMSO-d6): 6 [ppm] = 0.68 (d, 3H), 0.80 (d, 3H), 0.85 (d, 3H), 1.70-1.85 (m, 1H), 2.48-2.58 (m, 1H, lly ed by DMSO signal), 2.70—2.80 (m, 2H), 3.30—3.41 (m, 1H, partially obscured by H20 signal), 3.42 (s, 3H), 4.12 (d, 1H), 7.01 (dd, 1H), 7.31—7.37 (m, 2H), 7.43-7.50 (m, 4H), 9.83 (s, 1H). 'l: [0L]D20 = +1110, 0 = 0.25, methanol.
Example 97A Methyl 3-(4-chlor0 { [(2S,3R)(4-chlorophenyl)-4,4,4-trifluoromethylbutanoyl]amino} - phenyl)methylpentanoate (diastereomer 2) F F Cl 255 mg (0.96 mmol) of (ZS,3R)—2-(4-chlorophenyl)-4,4,4-trifluoromethylbutanoic acid were dissolved in 14ml of romethane, 205 mg (1.53 mmol) of 1-chloro-N,N,2-trimethylprop- l-ene-l-amine were added and the mixture was stirred at room temperature for 30 min. 232 pl (2.87 mmol) of pyridine and 245 mg (0.96 mmol) of methyl 3-(3-aminochlorophenyl)- 4-methylpentanoate (enantiomer 2; Example 18A) were then added, and the reaction mixture was d overnight. The reaction mixture was then concentrated under reduced pressure and the crude product obtained was purified directly by preparative RP-HPLC e phase methanol/water 80:20). This gave 228 mg of the target nd (47% of theory).
LC—MS (Method 5): Rt : 1.43 min; m/z = 504/506 (M+H)*. 1H-NMR (400 MHz, DMSO-d6): 5 [ppm] = 0.67 (d, 3H), 0.80 (d, 3H), 0.85 (d, 3H), 1.71-1.82 (m, 1H), 2.47-2.58 (m, 1H, partially obscured by DMSO signal), 2.70-2.80 (m, 2H), 3.29-3.41 (m, 1H, partially obscured by H20 signal), 3.43 (s, 3H), 4.12 (d, 1H), 7.01 (dd, 1H), 7.33 (d, 1H), 7.35 (d, 1H), 7.43-7.50 (m, 4H), 9.82 (s, 1H). [00020 = +84.7°, c = 0.325, ol. e 98A tert—Butyl hloro—3 — {[(2S,3R)—2-(4—ch10rophenyl)—4,4,4—trifluoro—3 -methylbutanoy1]amino} — pheny1)cyclopropylpropanoate (diastereomer I) CH3 0 H3C 0 HN O HJC’": F F"m©\Cl VI F 45 mg (0.17 mmol) of (2S,3R)(4-chlorophenyl)-4,4,4-trifluor0methy1butanoic acid were dissolved in 1 ml of dichloromethane, 36 mg (0.27 mmol) of 1-chloro-N,N,2-trimethylpropene- l-amine were added and the mixture was stirred at room temperature for 30 min. 41 pl (0.51 mmol) of pyridine and 50 mg (0.17 mmol) of tert—butyl 3-(3-aminochlorophenyl)cyclo- propylpropanoate (enantiomer 1; Example 30A), dissolved in 1 m1 of dichloromethane, were then added, and the reaction mixture was stirred for another 1 h. The reaction mixture was then concentrated under reduced pressure and the crude t obtained was ly purified chromatographically on silica gel (mobile phase cyclohexane/ethyl acetate 20:1). This gave 78 mg of the target compound (85% of theory).
LC—MS (Method 7): K : 1.52 min; m/z : 542/544 (M—H)’.
Example 99A tert—Butyl 3-(4-chloro-3 - { [(2S,3R)(4-chloropheny1)—4,4,4-trifluoro-3 -methylbutanoyl]amino} - pheny1)cyclopropylpropanoate (diastereomer 2) —113- HN 0 H30"'1 "HQ F F Cl 119 mg (0.45 mmol) of (28,3R)—2—(4—chlorophenyl)—4,4,4-trifluoromethylbutanoic acid were dissolved in 2 ml of dichloromethane, 95 mg (0.71 mmol) of l-chloro-N,N,2-trimethy1prop—l-ene- l—amine were added and the mixture was stirred at room temperature for 30 min. 108 pl (1.34 mmol) of pyridine and 132 mg (0.45 mmol) of tert—butyl 3-(3-arninochlorophenyl)- 3-cyclopropylpropanoate (enantiomer 2; Example 31A), dissolved in 2 ml of romethane, were then added, and the reaction mixture was stirred for another 1 h. The reaction mixture was then concentrated under reduced pressure and the crude product obtained was directly purified chromatographically on silica gel (mobile phase cyclohexane/ethyl e 20:1). This gave 206 mg of the target compound as a colourless oil (85% of theory).
LC-MS (Method 7): RI = 1.53 min; m/z = 542/544 (M-H)‘. 1H—NMR (400 MHz, DMSO-d6): 5 [ppm] : 0.03—0.11 (m, 1H), 0.17-0.34 (m, 2H), 0.45—0.55 (m, 1H), 0.80 (d, 3H), .00 (m, 1H), 1.21 (s, 9H), 2.14-2.24 (m, 1H), 2.47-2.57 (m, 1H, obscured by DMSO signal), 2.5 55-266 (m, 1H), 3.29-3.44 (m, 1H, lly obscured by H20 signal), 4.14 (d, 1H), 7.11 (dd, 1H), 7.37 (d, 1H), 7.40-7.51 (m, 5H), 9.82 (s, 1H).
The nds listed in the table below were prepared in an analogous manner: Name/Structure/Starting materials Analytical data tert-butyl 3 -(4-chloro—3— { [(25,3R)—2-(4-chloro- pheny1)—4,4,4—triflu0ro—3—methy1butan0yl]— amino} pheny1)-3 —( 1 -methy1cyclopropyl)pr0panoate CH, 0 CH, "’CX up 0 LC—MS (Method 7): 100A K = 1.56 min; m/z = 556/558 (M-H)". from tert-butyl minoch10rophenyl)— 3—(1 -methy1cyclopropyl)propanoate and (25,31?)— 2-(4-ch1orophenyl)-4,4,4-trifluoromethylbutanoic acid tert—butyl 3-(4-chloro{[(2S,3R)(4—chloro- pheny1)-4,4,4—trifluoromethy1butanoy1]- amino}phenyl)methoxymethylpentanoate LC-MS (Method 5): 101A K = 1.48 min; m/z = 574/576 (M—H)’. from tert-butyl minochloropheny1)— 4-methoxymethylpentanoate and (25,312)- 2-(4-chlorophenyl)-4,4,4-trifluoromethy1butanoic acid Example Name/Structure/Starting materials Analytical data tert—butyl 3 -(4—chlor0 { [(25,3R)(4-ch101‘0- phenyl)—4,4,4—trifluoromethylbutanoyl] — amino }phenyl)—3—( l —fluorocyclopropyl)propanoate H, o F up 0 cu LC-MS (Method 5): HN o 102A Rt = 1.46 min; m/z = 560/562 from tert-butyl 3-(3-aminochlor0phenyl)- 3—(l-fluorocyc10propyl)propanoate and (2S,3R)— 2—(4—ch1orophenyl)-4,4,4—trifluor0-3—methylbutanoic acid methyl 3-(4-chloro{[(25,3R)—2-(4-chloropheny1)— 4,4,4—trifluor0methylbutanoyl]amino}pheny1)— 3,4-dimethylpentanoate (diastereomer 1) LC—MS (Method 7): Rt = 1.48 min; m/z = 518/520 ‘H—NMR (400 MHz, DMSO- d6): 5 [ppm] = 0.56 (d, 3H), 103A 0.81 (dd, 6H), 1.29 (s, 3H), 1.82-1.93 (m, 1H), 2.58 (d, 1H), 2.77 (d, 1H), 3.30—3.44 (m, 1H), 3.33 (s, 3H), 4.12 (d, 1H), 7.12 (dd, 1H), 7.33 (d, 1H), 7.43— from methyl 3-(3-aminochloropheny1)- 7.50 (m, 5H), 9.81 (s, 1H). 3,4-dimethylpentanoate (enantiomer 1, Example 50A) and S,3R)(4-chloropheny1)- 4,4,4-trifluorOmethylbutanoic acid -116— tructure/Starting materials Analytical data methyl 3-(4-ch10ro-3— {[(25,3R)(4—chlorophenyl)- 4,4,4-trifluoro—3 1butan0yl]amin0}phenyl)— 3,4-dimethy1pentanoate (diastereomer 2) LC-MS (Method 5): R[ : 1.48 min; m/z = 518/520 (M+H)+.
'H-NMR (400 MHz, DMSO— d6): 5 [ppm] = 0.57 (d, 3H), 104A 0.81 (dd, 6H), 1.29 (s, 3H), 1.80-1.92 (m, 1H), 2.58 (d, 1H), 2.77 (d, 1H), 3.29-3.46 (m, 1H), 3.35 (s, 3H), 4.12 (d, 1H), 7.12 (dd, 1H), 7.33 (d, 1H), 7.42— from methyl 3—(3-aminochloropheny1)- 7.50 (m, 5H), 9.81 (s, 1H). 3,4—dimethy1pentanoate (enantiomer 2, Example 51A) and (+)—(2$,3R)-2—(4—chloropheny1)- trifluoro-3—methy1butanoic acid methyl 3-(4-chloro{[(25,3R)-2—(4-chloropheny1)- 4,4,4—trifluoromethylbutanoyl]amino}phenyl)- LC—MS (Method 5): 3-cyclobutylbutan0ate (diastereomer I) R): 1.51 min; m/z = 530/532 (M+H)*. 0 H,C 'H-NMR (400 MHz, DMSO— H3C\O / d6): 5 [ppm] = 0.80 (d, 3H), 1.31 (s, 3H), 1.44—1.53 (m, 1H), 105A 1.53—1.67 (m, 3H), .78 (m, 2H), 2.46 (d, 1H), 2.47—2.60 (m, 1H, partia11y obscured by DMSO signa1), 2.70 (d, 1H), 3.36-3.46 (m, 1H), 3.38 (s, 3H), from methyl 3-(3-aminochloropheny1)- 4.12 (d, 1H), 7.10 (dd, 1H), 3-cyclobutylbutanoate (enantiomer 1, 7.34 (d, 1H), 7.42-7.51 (m, 5H), Example 52A) and (+)—(2S,3R)(4-chlorophenyl)— 9.81 (s, 1H). 4,4,4-trifluoromethylbutanoic acid Name/Structure/Starting materials Analytical data methyl 3-(4-ch10r0—3- {[(25,3R)—2—(4—chlorophenyl)- LC—MS (Method 5): 4,4,4—trifluoro-3 -methylbutanoyl]amin0}phenyl)— RI : 1.51 min; m/z : 2 0butylbutanoate (diastereomer 2) (M+H)+. lH-NMR (400 MHz, DMSO- dé): 8 [ppm] = 0.81 (d, 3H), 1.31 (s, 3H), 1.43-1.53 (m, 1H), 1.53-1.67 (m, 3H), 1.67-1.78 106A (m, 2H), 2.46 (d, 1H), 2.46-2.59 (m, 1H, partially obscured by DMSO ), 2.70 (d, 1H), 3.36-3.46 (m, 1H), 3.40 (s, 3H), 4.12 (d, 1H), 7.10 (dd, 1H), from methyl 3-(3-aminoch10r0phenyl)- 7.34 (d, 1H), 7.43—7.50 (m, 5H), 3—cyclobuty1butan0ate (enantiomer 2, 9.81 (s, 1H). e 53A) and (+)-(2S,3R)(4-ch10ropheny1)— 4,4,4-trifluor0methylbutanoic acid methyl 3—(4-chloro{[(25,3R)—2-(4-ethy1pheny1)- 4,4,4—trifluoromethy1butanoyl]amino}pheny1)- LC-MS (Method 5): 4-methy1pentanoate (diastereomer I) R[ = 1.48 min; m/z = 498 H‘C CH 3 (M+H)+.
H30\ 1H-NMR (400 MHz, DMSO- do): 5 [ppm] = 0.68 (d, 3H), 0.79 (d, 3H), 0.85 (d, 3H), 1.17 107A (t, 3H), 1.70-1.84 (m, 1H), 2.45- 2.64 (m, 3H, partially obscured by DMSO signal), 2.70—2.80 (m, 2H), 3.28-3.39 (m, 1H,paITia11y obscured by H20 signal), 3.42 from methyl 3-(3-aminochlorophenyl)-4—methy1- (s, 3H), 4.06 (d, 1H), 6.98 (dd, pentanoate (enantiomer 1, Example 17A) and 1H), 7.21 (d, 2H), 7.30-7.39 (m, (2S,3R)(4-ethylpheny1)-4,4,4-trifluoro— 4H), 9.73 (s, 1H). 3-methy1butan0ic acid Name/Structure/Starting materials Analytical data methyl 3-(4-chloro—3-{[(2S,3R)(4-chloro- LC-MS (Method 5): 3—fluor0phenyl)-4,4,4—trifluoro—3—methylbutanoyl]— R1 : 1-43 min; m/z : 4 amino}phenyl)—4—methylpentanoate (M+H)+- ereomer 1) 1H-NMR (400 MHZ, DMSO— d6): 5 [ppm] = 0.68 (d, 2.77H, major diastereomer), 0.84 (t, 6H), 1.25 (d, 0.23H, minor diastereomer), 1.71-1.84 (m, 108A 1H), 2.46-2.60 (m, 1H, partially obscured by DMSO signal), 2.70-2.81 (m, 2H), 3.36-3.49 (m, 1H), 3.43 (s, 3H), 4.15 (d, 1H), 7.02 (dd, 1H), 7.29-7.38 from methyl 3-(3—amino-4—chlorophenyl)—4—methyl- (m, 3H), 7 _50 (dd, 1H), 7.63 (t, pentanoate (enantiomer 1, Example 17A) and 1H), 937 (s, 0.925H, major (2S,3R)(4-chlorofluorophenyl)-4,4,4-trifluoro- diastereomer), 10.01 (3, 00751—1, ylbutanoic acid minor diastereomer) (85% de). methyl 3-(4-chloro—3-{[(28,3R)-4,4,4-trifluoro- LC—MS (Method 5): sopropylphenyl)-3—methylbutanoyl] amino} - R1 = 1.54 min; m/z = 512/514 phenyl)methylpentanoate (diastereomer 1) (M+H)*. ".0 CH.
‘H—NMR (400 MHz, DMSO- d6): 5 [ppm] = 0.68 (d, 3H), Cl 0.79 (d, 3H), 0.85 (d, 3H), 1.19 (d, 6H), 1.71-1.83 (m, 1H), 109A 2.45-2.58 (m, 1H, obscured by DMSO signal), 2.70—2.80 (m, 2H), 2.81-2.93 (m, 1H), 3.28- 3 3.39 (m, 1H, lly obscured from methyl 3—(3-aminochlorophenyl)methyl— by H20 signal), 3.42 (s, 3H), 4.07 (d, 1H), 6.98 (dd, 1H), pentanoate (enantiomer 1, Example 17A) and 7'24 (d’ 2H)’ 7'3 L741 (23,3R)-4,4,4-trifluoro(4-isopropylphenyl)- (111, 4H)’ 9'73 (S’ 1H)‘ 3-methylbutanoic acid Example Name/Structure/Starting materials Analytical data LC-MS (Method 5): R1: 1.36 min; mfz : 488/490 methyl 3-(4-chloro-3 - { [(2S,3R)-4,4,4-trifluoro- (M+H)*. 2-(4-fluorophenyl)methylbutanoyl]amino}- ‘H-NMR (400 MHz, DMSO- phenyl)methylpentanoate (diastereomer 1) d6): 5 [ppm] = 0.68 (d, 2.77H, up on 0 major reomer), 0.80 (d, HC\ 3H), 0.85 (d, 3H), 1.25 (d, 0.23H, minor diastereomer), 1.71-1.83 (m, 1H), 2.45 (m, 1H, 110A obscured by DMSO signal), 2.70-2.81 (m, 2H), 3.28-3.40 (m, 1H, partially obscured by H20 signal), 3.42 (s, 3H), 4.11 from methyl 3—(3—aminochlorophenyl)methyl- (d, 1H), 7.00 (dd, 1H), 7.22 (t, pentanoate (enantiomer 1, Example 17A) and 2H), 7.31-7.37 (m, 2H), 7.44- )-4,4,4-trifluoro(4-fluorophenyl)— 7.54 (m, 2H), 9.80 (s, 0.925H, ylbutanoic acid major diastereomer), 9.93 (s, 0.075H, minor diastereomer) (85% de).
Name/Structure/Starting materials Analytical data methyl 3—[4—chloro-3 —( {4,4,4—trifluor0—3—methy1— 2—[4-(2,2,2—trifluoroethyl)phenyl]butanoyl}amino)— phenyl]methylpentanoate (diastereomer mixture) OHJc CH3 H30\o "N 0 LC-MS (Method 5): 111A H C R = 1.40 min; m/z = 552/554 F F F F from methyl minoch10rophenyl)—4—methy1- pentanoate (enantiomer 1, Example 17A) and 4,4,4-trifluor0methyl[4-(2,2,2—trifluoroethyl)— pheny1]butanoic acid (diastereomer mixture) Example Name/Structure/Starting materials ical data ' methyl 3-[4-chloro-3—({(2S,3R)—2-[4-(2,2—diflu0ro— cyclopropyl)phenyl]-4,4,4-triflu0r0-3—methyl- butanoyl} phenyl]methylpentan0ate (diastereomer mixture) I H..C I ‘ . 0 l LC-MS (Method 5): Rt = 1.39 min; m/z = 546/548 (M+H)+. from methyl 3-(3-aminochlorophenyl)- 4-methylpentanoate (enantiomer 1, Example 17A) and (25,3R)[4-(2,2-difluorocyclopropy1)phenyl]— 4,4,4-trifluoromethy1butanoic acid (diastereomer mixture) Name/Structure/Starting materials Analytical data LC-MS (Method 5): methyl 3 -(3 — {[(2S,3R)—2—(4—tert-butylphenyl)— R: 1.52 min; m/z : 526/528 4,4,4-trifluoro hy1butanoyl]amino} -4—chloro- (M+H)+. phenyl)methylpentanoate (diastereomer 1) C)H,c ‘H-NMR (400 MHz, DMSO- d6): 5 [ppm] = 0.68 (d, 3H), 0.79 (d, 3H), 0.85 (d, 3H), 1.27 (s, 9H), 1.70-1.84 (m, 1H), 2.46-2.58 (m, 1H, partially 113A obscured by DMSO signal), 2.70-2.80 (m, 2H), .39 (m, 1H, partially obscured by H20 signal), 3.42 (s, 3H), 4.08 (d, 1H), 6.98 (dd, 1H), 7.31- from methyl 3-(3-aminochlorophenyl)methy1- 7.43 (m, 6H), 9.72 (s, 0.96H, pentanoate (enantiomer 1, e 17A) and major diastereomer), 9.86 (s, (23,3R)(4-tert-butylphenyl)-4,4,4-trifluoro- 0.04H, minor diastereomer) 3—methylbutanoic acid (92% de).
Name/Structure/Starting materials Analytical data methyl 3-(4-ch10r0{[(2S,3R)—2-(4-chloro- 3—meth0xyphenyl)—4,4,4—triflu0r0—3-methy1— butanoyl]amino} phenyl)—4—methy1pentanoate (diastereomer I) LC-MS (Method 4): 114A R, = 2.91 min; m/z = 534/536 (M+H)+. from methyl 3-(3—amin0—4—chloropheny1)—4—methyl— pentanoate (enantiomer 1, Example 17A) and (25,31?)(4-chloromethoxypheny1)— 4,4,4-trifluoromethylbutan0ic acid methyl 3-(4—ch10ro{[(2S,3R)-4,4,4-trifluoro- LC-MS (Method 5): 3-methy1(4-methy1phenyl)butanoyl]amino}- R: = 1.40 min; m/z = 484/486 )methy1pentanoate (diastereomer 1) (M+H)+. up 1 lH-NMR (400 MHz, DMSO- d6): 5 [ppm] = 0.68 (d, 3H), 0.79 (d, 3H), 0.85 (d, 3H), 1.70- 1.84 (m, 1H), 2.29 (s, 3H), 2.48- 115A 2.57 (m, 1H, obscured by DMSO signal), .80 (m, 2H), 3.29—3.40 (m, 1H, partially obscured by H20 signal), 342 (s, 3H), 4.05 (d, 1H), 6.99 (dd, from methyl 3-(3-aminoch10rophenyl)—4-methy1- 1H), 7.18 (d, 2H), 7.29-7.38 (m, pentanoate (enantiomer 1, Example 17A) and 4H), 9.73 (5, 0941.1, major )-4,4,4-trifluor0methy1(4-methy1~ diastereomer), 9.87 (s, 0.06H, )butan0ic acid minor diastereomer) (88% de). -124— w Name/Structure/Starting materials Analytical data methyl 3-(4-chloro {[(ZS,3R)(4-chloro- LC—MS d 5): 3—methylphenyl)-4,4,4—trifluor0—3—methylbutanoyl]— R, : 1.51 mm; m/z : 518/520_ amino } phenyl)—4-methylpentanoate (M+H)+. (diastereomer I) 'H-NMR (400 MHz, DMSO- H3C CH! d6): 5 [ppm] = 0.68 (d, 3H), 0.81 (d, 3H), 0.85 (d, 3H), 1.70— 1.83 (m, 1H), 2.23 (s, 3H), 2.45— 2.59 (m, 1H, lly obscured 116A by DMSO signal), 2.70-2.81 (m, 2H), 3.28-3.41 (m, 1H, partially ed by H20 signal), 3.42 (s, 3H), 4.07 (d, 1H), 7.00 (dd, 1H), 7.27-7.45 (m, 5H), 9.81 (s, from methyl 3—(3-amino—4—chlorophenyl)- 0.94H, major diastereomer), 4-methylpentanoate (enantiomer 1, Example 17A) 9.89 (s, 0.06H, minor and (25,3R)—2—(4—chlor0-3—methylpheny])— diastereomer) (88% de). 4,4,4-trifluoromethylbutanoic acid methyl 3-(4-chloro{[(4-chlorophenyl)- LC—MS (Method 5): (3,3—difluorocyclopentyl)acetyl]amino}phenyl)- R, = 1.41 min; m/z = 4 4-methylpentanoate (isomer 1) (M+H)+.
H3C CH, 'H-NMR (400 MHz, DMSO- 0 d6): 5 [ppm] = 0.67 (d, 3H), 0.85 (d, 3H), 1.52-1.70 (m, 2H), 1.72-1.82 (m, 1H), .95 HN O 117A (m, 1H), 1.98-2.30 (m, 3H), 2.46—2.60 (m, 1H, panially obscured by DMSO signal), F CI F 2.70-2.80 (m, 2H), 2.80-2.93 (m, 1H), 3.43 (s, 3H), 3.78 (d, from methyl 3-(3-aminochlor0phenyl)- 1H), 7.02 (dd, 1H), 7.33 (d, 4-methylpentanoate (enantiomer 1, Example 17A) 1H), 7.37 (d, 1H), 7.44 (q, 4H), and (4-Ch1OI‘Oph€11y1)(3 3 dfl- 1 UOI‘OC 1 , yC 0pcuty1) aCCtIC 9.78 (s, 1H). acid (isomer 1) Name/Structure/Starting materials Analytical data methyl 3-(4—chlor0—3— {[(4-ch10r0phenyl)- LC—MS (Method 5): (3,3-diflu0rocyc10pentyl)acetyl]amin0}phenyl)- R, : 1.41 min; m/Z : 512/514 4-methylpentan0ate (isomer 2) (M+H)+.
HJC CH] ‘H-NMR (400 MHz, DMSO- dg): 5 [ppm] = 0.67 (d, 3H), 0.85 (d, 3H), 1.52-1.69 (m, 2H), .81(m, 1H), 1.81-1.96 118A (m, 1H), 1.98-2.30 (m, 3H), 2.46-260 (m, 1H, partially obscured by DMSO signal), F CI F 2.70—2.80 (m, 2H), 2.80—2.93 . (m, 1H), 3.43 (s, 3H), 3.78 (d, from methyl 3-(3-am1no—4-ch10rophenyl)- 1H), 7.02 (dd, 1H), 7.34 (d, y1pentanoate (enantiomer 1, Example 17A) 1H), 7.36 (d, 1H), 7.44 (q, 4H), and (4-chlorophenyl)(3,3—difluorocyclopentyl)acetic 9.78 (s, 1H). acid (isomer 2) methyl 3-(4-ch10r0 {[(4-chlor0phenyl)- LC-MS (Method 5): (3 3 d‘fl _ — 1 uorocyc 01 pentyl)acety1] amino } pheny1)- , R: 1.42 min; 2/514 4-methylpentan0ate (isomer 3) (M+H)+.
H30 CH 1H—NMR (400 MHz, DMSO— H3C\ 0 d6): 8 [ppm] = 0.67 (d, 3H), 0.85 (d, 3H), 1.21-1.35 (m, 1H), T Cl 1.45-1.58 (m, 1H), 1.72—1.83 HN O 119A (m, 1H), 1.85-2.20 (m, 3H), .43 (m, 1H), 2.47—2.60 (m, 1H, partially ed by F 0 F DMSO signal), 2.70-2.90 (m, 3H), 3.44 (s, 3H), 3.75 (d, 1H), from methyl(3-amin0-4—chlor0pheny1)- 7.02 (dd, 1H), 7.33 (d, 1H), 4-methylpentanoate (enantiomer 1, Example 17A) 7.37 (d, 1H), 7.44 (q, 4H), 9.74 and (4-ch10rophenyl)(3,3—difluorocyclopenty1)acetic (s, 1H) . acid (isomer 3) Name/Structure/Starting materials Analytical data methyl 3—(4—chlor0-3 - { [(4-chlor0phenyl)— LC-MS (Method 5): (3,3-difluorocyclopentyl)acetyl]amino}phenyl)- Rt = 1.42 min; m/z = 512/514 4-methylpentanoate (isomer 4) (M+H)+.
H_,C lH-NMR (400 MHz, DMSO- H,c\ d6): 5 [ppm] = 0.68 (d, 3H), 0.86 (d, 3H), 1.21-1.35 (m, 1H), .58 (m, 1H), 1.71-1.83 120A (m, 1H), 1.85-2.20 (m, 3H), 2.29—2.44 (m, 1H), 2.46-2.61 (m, 1H, partially ed by y: Cl F DMSO signal), 2.70-2.90 (m, 3H), 3.43 (s, 3H), 3.75 (d, 1H), from methyl 3-(3-aminochlorophenyl)— 7.02 (dd, 1H), 7.34 (d, 1H), ylpentanoate (enantiomer 1, Example 17A) 7.36 (d, 1H), 7.44 (q, 4H), 9.74 and (4-chlorophenyl)(3,3-difluorocyclopentyl)acetic (s, 1H). acid (isomer 4) Example 121A Methyl 3—(4-chloro-3 — { [(25,3R)-2—(4—chlor0phenyl)—4,4,4—triflu0r0—3-methylbutan0yl]amino} — phenyl)(2,2-difluorocyclopropyl)propanoate methyl 3-(4-chlor0-3 - {[(25,3R)(4-chlorophenyl)-4,4,4-trifluor0—3-methylbutanoyl]amino} - phenyl)-5,5-difluorohexanoate —127- H3C\O Cl and HN 0 HJC’II, p", H3C’Ih '1," F F CI F F C| F f: 330 mg (1.24 mmol) of (2S,3R)—2-(4-chloropheny1)—4,4,4-trifluoromethylbutanoic acid were dissolved in 10 ml of dichloromethane, 264 mg (1.98 mmol) of 1-chloro-N,N,2-trimethylprop- l-ene—l-amine were added and the e was stirred at room temperature for 30 min. 300 pl (3.71 mmol) of pyridine and 360 mg of the mixture consisting of methyl 3-(3—amino~ 4—chlorophenyl)-3—(2,2-difluorocyclopropyl)propanoate and methyl 3-(3—amino—4—chlorophenyl)— ,5—difluorohexanoate (Example 59A), dissolved in 1 m1 of dichloromethane, were then added, and the reaction mixture was stirred for a further 1 h. The reaction e was then concentrated under reduced pressure and the crude product obtained was directly purified chromatographically on silica gel (mobile phase exane/ethyl acetate 20:1). This gave 479 mg of the mixture of the two target nds.
LC—MS (Method 5): RI = 1.33 min; m/z = 538/540/542 (M+H)+.
Examples 122A — 125A 476 mg of the mixture of methyl 3-(4-chloro{[(25,3R)(4-ch1orophenyl)-4,4,4—trifluoro- 3-methylbutanoy1]amino}phenyl)—3-(2,2—difluorocyclopropyl)propanoate and methyl 3—(4-chloro— 3 — { [(2S,3R)-2—(4—chlorophenyl)-4,4,4—trifluoro—3—methy1butanoyl]amino}phenyl)-5 ,5—difluoro— hexanoate (Example 121A) were separated further by preparative HPLC on a chiral phase nz Daicel pak AZ-H, 5 pm, 250 mm x 20 mm; mobile phase: isohexane/isopropanol 95:5 (v/v); flow rate: 15 ml/min; UV detection: 220 nm; temperature: 30°C]. The material lly obtained for peak 2 and peak 3 was combined and then separated by another preparative HPLC on a chiral phase [columnz Daicel Chiralpak AD-H, 5 pm, 250 mm x 20 mm; mobile phase: isohexane/isopropanol 95:5 (v/v); flow rate: 15 ml/min; UV detection: 220 nm; temperature: °C].
Example 122A Methyl 3—(4—chloro-3 - { [(2S,3R)-2—(4-chlorophenyl)-4,4,4-trifluoro—3—methylbutanoyl]amino} — )—5,5—difluorohexanoate (diastereomer 1) Yield: 100 mg Rt = 8.42 min; chemical purity >99%, >99% de [Columnz Daicel AZ-H, 5 pm, 250 mm x 4.6 mm; mobile phase: isohexane/(isopropanol + 0.2% trifluoroacetic acid + 1% water) 95:5 (V/v); flow rate: 1 ml/min; UV detection: 220 nm; temperature: 30°C].
LC-MS (Method 5): R1 = 1.33 min; m/z = 540/542 (M+H)+.
'H-NMR (400 MHZ, DMSO—d6): 5 [ppm] = 0.80 (d, 3H), 1.46 (t, 3H), 2.19-2.32 (m, 2H), 2.46-2.60 (m, 1H, partially obscured by DMSO signal), 2.69-2.78 (m, 1H), .30 (m, 1H), 3.30—3.43 (m, 1H, obscured by H20 signal), 3.48 (s, 3H), 4.12 (d, 1H), 7.14 (dd, 1H), 7.37 (d, 1H), 7.42 (d, 1H), 7.43—7.50 (m, 4H), 9.84 (s, 1H).
Example 123A Methyl 3-(4-chloro-3 - { [(25,3R)(4-chlorophenyl)-4,4,4-trifluoromethylbutanoyl] amino} - ph'enyl)-5,5-difluorohexanoate (diastereomer 2) Yield: 96 mg R1 = 10.14 min; chemical purity >94%, >99% de [Columnz Daicel AZ-H, 5 pm, 250 mm x 4.6 mm; mobile phase: isohexane/(isopropanol + 0.2% trifluoroacetic acid + 1% water) 95:5 (v/v); flow rate: 1 m1/min; UV detection: 220 nm; temperature: 30°C].
LC-MS (Method 5): K = 1.33 min; m/z = 540/542 (M+H)+. lH-NMR (400 1\/[Hz, DMSO-d6): 5 [ppm] = 0.80 (d, 3H), 1.47 (t, 3H), 2.19-2.32 (m, 2H), 2.46-2.60 (m, 1H, partially obscured by DMSO signal), 2.69-2.78 (m, 1H), .30 (m, 1H), 3.30—3.43 (m, 1H, obscured by H20 signal), 3.46 (s, 3H), 4.12 (d, 1H), 7.14 (dd, 1H), 7.37 (d, 1H), 7.41 (d, 1H), 7.43—7.50 (m, 4H), 9.84 (s, 1H).
Example 124A Methyl 3-(4-chloro-3 - { [(2S,3R)(4-chloropheny1)-4,4,4—trifluoromethylbutanoyl]amino} - phenyl)-3 difluorocyclopropyl)propanoate (isomer 1) H ’C\O HN O H3G,," F F Cl Yield: 124 mg R1 = 9.00 min; chemical purity >96% [Column: Daicel AZ-H, 5 pm, 250 mm x 4.6 mm; mobile phase: isohexane/(isopropanol + 0.2% roacetic acid + 1% water) 95:5 (v/v); flow rate: 1 ml/min; UV detection: 220 nm; temperature: 30°C].
LC-MS (Method 5): Rt = 1.34 min; m/z = 538/540 (M+H)+. lH-NIVIR (400 MHz, DMSO-dé): 3 [ppm] = 0.80 (d, 3H), 1.06-1.18 (m, 1H), 1.38-1.51 (m, 1H), 2.01—2.16 (m, 1H), 2.64-2.82 (m, 3H), .54 (m, 1H, partially obscured by H20 signal), 3.50 (s, 3H), 4.12 (d, 1H), 7.22 (dd, 1H), 7.41 (d, 1H), 7.43-7.50 (m, 5H), 9.88 (s, 1H).
Example 125A Methyl 3-(4-chloro-3 - { [(25,3R)(4-chlorophenyl)-4,4,4-trifluoromethylbutanoyl]amino} - phenyl)-3—(2,2-difluorocyc1opropyl)propanoate (isomer 2) H.C\ HN O H\Cl’l, '1, Yield: 118 mg Rt = 9.47 min; chemical purity >99% [Columnz Daicel AZ-H, 5 pm, 250 mm x 4.6 mm; mobile phase: isohexane/(isopropanol + 0.2% 'lo trifluoroacetic acid + 1% water) 95:5 (v/v); flow rate: 1 ml/min; UV detection: 220 nm; temperature: 30°C].
LC-MS (Method 5): K = 1.33 min; m/z = 538/540 (M+H)+. 1H—NMR (400 MHz, DMSO—dfi): 5 [ppm] = 0.80 (d, 3H), 1.06-1.18 (m, 1H), 1.38—1.52 (m, 1H), 2.01—2.15 (m, 1H), 2.63—2.83 (m, 3H), .58 (m, 1H, partially ed by H20 signal), 3.49 (s, 3H), 4.12 (d, 1H), 7.21 (dd, 1H), 7.40 (d, 1H), 7.42—7.50 (m, 5H), 9.87 (s, 1H).
Examnle 126A tert—Butyl 3-(4-chloro-3— { [(25,3R)—2-(4-chlorophenyl)-4,4,4-trifluoromethylbutanoyl]amino} - phenyl)(3,3-difluorocyclobutyl)propanoate (diastereomer mixture) F F CH, 0 ""°>k H30 0 HN o HJCIII, ‘1’], F F on A solution of 76 mg (0.29 mmol) of (2S,3R)(4-chlorophenyl)-4,4,4-trifluoromethylbutanoic acid, 45 mg (0.13 mmol) of tert—butyl 3-(3-aminochlorophenyl)(3,3-diflu0rocyclobutyl)- propanoate, 119 mg (0.31 mmol) of 0—(1H—7-azabenzotriazoly1)—N,N,N’,N’-tetramethyluronium hexafluorophosphate (HATU) and 0.51 ml of pyridine in 1 ml of DMF was stirred at room temperature overnight. After the reaction had ended, the mixture was directly, t further work-up, separated into its components by preparative HPLC. This gave 19 mg (25% of ) of the title compound as a less oil.
LC-MS (Method 5): R[ = 1.47 min; m/z = 592/594 (M—H)‘.
The compounds listed in the table below were prepared in an analogous manner: Name/Structure/Starting materials Analytical data tert—butyl 3-(4—ch10ro—3—{[(2S,3R)—2—(4-ch10ro— phenyl)-4,4,4-trifluoro—3—methylbutanoyl]amino}- LC-MS (Method 5): )cyc10butylpropanoate Rt = 1.57 min; m/z = 556 (diastereomer mixture) (M-H)‘. 1H—NMR (400 MHz, DMSO- H,C£’ 0 d6): both diastereomers: 3 [ppm] H30 0 = 0.80 (d, 3H), 1.15/1.18 (23, Cl together 9H), 1.46—1.62 (m, HN 0 2H), 1.62-1.76 (m, 3H), 1.96- 2.06 (m, 1H), .28 (m, I 1H), 2.32-2.48 (m, 2H), 2.76— F F QCI 2.87 (m, 1H), 3.35—3.45 (m, F 1H), 4.13/4.14 (2d, together from (+/-)-tert-butyl 3-(3-amin0-4—chlorophenyl)— 1H)’ 7'00 (dt’ lH)’ 7'34 (d’ 1H)’ 736-753 (In, 5H)’ 9'79/9'80 3—cyclobutylpropanoate and (+)—(ZS,3R)- 2-(4-ch10ropheny1)-4,4,4-trifluoromethylbutan0ic (28’ together 1H)’ acid —134— Name/Structure/Starting materials Analytical data ' tert—butyl 3 -(4-ch10ro—3— 3R)(4—chloro— phenyl)-4,4,4—trifluor0—3—methylbutan0y1]amino}— phenyl)cyclopropylbutan0ate (diastereomer mixture) LC-MS (Method 5): R. = 1.62 min; III/z = 556/558 (M-H)". from tert-butyl 3-(3-aminochlorophenyl)- 4-cyclopropylbutanoate and (+)-(2S,3R)- 2-(4-chlorophenyl)-4,4,4-trifluoromethylbutanoic acid Name/Structure/Starting materials Analytical data ethyl 3—(4-ch10ro—3— { [(28,3R)—2-(4-ch10rophenyl)- 4,4,4—trifluoromethylbutan0yl]amino}phenyl)— 3-cyc1opropylmethylpropanoate (diastereomer mixture) LC-MS (Method 7): K = 1.49 min; m/z = 530/532 (M+H)+. from ethyl minochlorophenyl)—3-cyclo- propyl-Z-methylpropanoat (diastereomer mixture) and (+)-(ZS,3R)(4-chlorophenyl)-4,4,4-trifluoro- 3-methylbutanoic acid 4— _L—_-, Example Name/Structure/Starting materials Analytical data methyl 3-(4-chloro{[(25,3R)(4-chlorophenyl)- 4,4,4-trifluoro—3—methylbutanoyl]amino}phenyl)— 3—cyclopropylbutanoate (diastereomer mixture) 014.0 H)C\ LC-MS (Method 5): 130A R‘ = 1.41 min; m/z = 516/518 from methyl 3-(3-aminochlorophenyl)-3 -cyclo- propylbutanoate (racemate) and (+)-(2S,3R)- hlorophenyl)—4,4,4—trifluoro—3-methylbutanoic acid Example 131A 2—(1-Methylcyclopropyl)ethanol 11.23 g (87.1 mmol) of zinc/copper pair were taken up in 50 ml of diethyl ether, and 6.76 ml (92.9 mmol) of chloroiodomethane were added at room temperature. 5.84 ml (58.1 mmol) of 3—methy1but—3—enol, ved in 10 m1 of diethyl ether, were then added dropwise. After the on had ended, the on mixture was heated to 40°C and stirred at this temperature overnight. After cooling, the reaction was filtered off with suction through kieselguhr, and the kieselguhr was washed repeatedly with diethyl ether. The combined filtrates were washed with saturated aqueous sodium bicarbonate solution and with water, dried over magnesium sulphate and then concentrated to dryness under reduced pressure. The residue ed was purified by chromatography on silica gel (mobile phase cyclohexane/ethyl acetate 10:1). This gave 3.58 g (62% of theory) of the title compound.
GC-MS (Method 1): Rt = 1.23 min; m/z = 100 (M)+. 1H-NMR (400 MHz, DMSO-ds): 8 [ppm] = 0.24—0.29 (m, 2H), 0.29—0.34 (m, 2H), 1.05 (s, 3H), 1.37 (t, 1H), 1.53 (t, 2H), 3.74—3.80 (m, 2H).
The following compound was obtained analogously to Synthesis Example 1A: e Name/Structure/Starting materials Analytical data GC—MS (Method 6): utyl (2E)(l-methylcyclopr0pyl)- K = 3.86 min; m/z = 214 butenoate (M+NH4)+.
'H-NMR (400 MHz, DMSO-ds); [ppm] = 0.25-0.31 (m, 2H), 0.31-0.37 (m, 2H), 0.98 (s, 3H), from tert—butyl (triphenyl—Xs—phosphanylidene)— 1-43 (S, 9H): 206-211 (m, 2H), acetate and 2—(1—methylcyclopropyl)ethanol 5-76'5-83 (m, 1H), 6-72'6-82 (m, 1H).
The following compound was obtained ously to sis Example 4A/5A: Name/Structure/Starting als Analytical data tert-butyl (2E/Z)(3-aminochloropheny1)— LC-MS (Method 5): 4-(1 -methylcyclopropyl)butenoate R[ = 1.42 min; m/z = 322 (M+H)*.
‘H-NMR (400 MHz, DMSO-dé): [ppm] : 0.04—0.10 (m, 2H), 0.17—0.24 (m, 2H), 0.85 (s, 3H), 1.46 (s, 9H), 3.02 (s, 2H), 5.40 (br. s, 2H), 5.82 (s, 1H), 6.62 (dd, 1H), 6.88 (d, 1H), 7.17 (d, from tert-butyl (2E)(1-methylcyclopropyl)- 1H). butenoate and 5-bromochloroaniline Example 134A tert—Butyl mino-4—chloropheny1)—4-(l-methylcyclopropyl)butanoate H‘C ‘ Hp o 187 mg (0.58 mmol) of tert—butyl (2E/Z)-3—(3-amino-4—chlorophenyl)-4—(1-methylcyclopropyl)but— 2-enoate were dissolved in 10 ml of ethyl acetate, and 11 mg (0.06 mmol) of p1atinum(IV) oxide were added. At RT, the reaction mixture was stirred under an atmosphere of hydrogen at atmospheric pressure overnight. Another 11 mg (0.06 mmol) of p1atinum(IV) oxide were added, and the mixture was then once more stirred at RT under an atmosphere of hydrogen at heric pressure overnight. The reaction mixture was then filtered off with suction h kieselguhr, and the filtrate was concentrated. This gave 36 mg (19% of theory) of the target compound.
LC-MS (Method 5): R. = 1.37 min; m/z = 324 (M+H)+.
'H—NMR (400 MHz, DMSO-dp): 5 [ppm] = 0.10—0.03 (m, 1H), 0.03—0.04 (m, 1H), .25 (m, 2H), 0.95 (s, 3H), 1.27 (s, 9H), 1.40—1.52 (m, 2H), 2.24—2.33 (m, 1H), 2.47-2.58 (m, 1H, partially obscured by DMSO signal), 2.95—3.05 (m, 1H), 5.19 (br. s, 2H), 6.41 (dd, 1H), 6.65 (d, 1H), 7.05 (d, 1H).
The following nd was prepared analogously to Synthesis Example 99A: -139— Example Name/Structure/Starting materials Analytical data tert—butyl 3 -(4—chloro—3 — { [(2S,3R)(4—chlor0— LC—MS (Method 8): phenyl)-4,4,4-trifluoro—3-methylbutanoyl]amino} — Rt : 3.27 min; m/z : 1 pheny1)(1-methylcyclopropyl)butanoate (M-H)‘. (diastereomer e) 1H—NMR (400 MHz, DMSO- d6): 5 [ppm] = -0.14- -0.07 (m, 1H), -0.07—0.02 (m, 1H), 0.12- 0.19 (m, 1H), 0.19-0.25 (m, 1H), 0.80 (d, 3H), 0.93 (d, 3H), 135A 1.19 (2s, 9H), 1.39-1.55 (m, 2H), 2.26-2.38 (m, 1H), 2.48- 2.63 (m, 1H, lly obscured by DMSO signal), 3.05-3.16 (m, 1H), 3.29-3.44 (m, 1H, partially obscured by H20 signal), 4.14 from tert-butyl 3-(3-aminochlorophenyl)- (dd, 1H), 7.06 (d, 1H), 7.34 (d, 4-(1 -methylcyclopropyl)butanoate and 1H), 7.39-7.51 (m, 5H), 9.80 (d, (25,3R)(4-chlorophenyl)-4,4,4-trifluoro- 1H). 3-methylbutanoic acid - 140 — Example 1 (+)—3—(4—Chloro—3— {[(2S,3R)—2-(4—chlor0phenyl)—4,4,4—trifluoro—3-methy1butan0yl]amino}phenyl)— 4—methylpentanoic acid (diasz‘ereomer I) 0H,c CH, HN O H ‘0’!" F F CI 4 ml of concentrated acetic acid and 2 ml of concentrated hydrochloric acid were added to 225 (0.45 mmol) of methyl 3—(4—chloro—3—{[(25,3R)—2—(4—chl0r0phenyl)—4,4,4-trifluoro-3—methyl- butanoyl]amino}phenyl)methylpentanoate (diastereomer 1; Example 96A). The reaction mixture was stirred at 100°C for 2 h. After cooling, the on mixture was added to ice-water, and the crystals formed were d off with suction. The crystals were washed twice with water and then dried in a high vacuum drying cabinet at 40°C ght. This gave 193 mg (88% of theory) of the title nd as a white solid.
LC—MS (Method 7): Rt = 1.30 min; m/z = 490/492 (M+H)+. lH-NMR (400 IVE-12, DMSO'dg): 5 [ppm] = 0.68 (d, 3H), 0.80 (d, 3H), 0.84 (d, 3H), 1.70—1.80 (m, 1H), 2.36-2.48 (m, 1H), 2.61—2.70 (m, 1H), 2.70—2.80 (m, 1H), 3.29-3.43 (m, 1H, partially obscured by H20 signal), 4.13 (d, 1H), 7.00 (dd, 1H), 7.31—7.37 (m, 2H), 7.43-7.50 (m, 4H), 9.82 (s, 1H), 11.95 (br. s, 1H). [qu20 : +1110, 0 = 0.285, methanol.
Example 2 3|) (+)—3-(4-Chloro-3 - { [(28,3R)(4-chlorophenyl)-4,4,4-trifluoro—3-methylbutanoyl] amino}pheny1)- 4-methylpentanoic acid (diastereomer 2) 4 ml of concentrated acetic acid and 2 ml of concentrated hydrochloric acid were added to 218 (0.43 mmol) of methyl 3-(4-chloro-3—{[(2S,3R)(4-chloropheny1)-4,4,4-trifluoromethyl— butanoyl]amino}phenyl)-4—methylpentanoate (diastereomer 2; Example 97A). The reaction mixture was stirred at 100°C for 2 h. After cooling, the reaction mixture was added to ice-water, and the crystals formed were filtered off with suction. The ls were washed twice with water and then dried in a high vacuum drying cabinet at 40°C overnight. This gave 188 mg (89% of theory) of the title compound as a white solid.
LC—MS (Method 7): R = 1.30 min; m/z = 490/492 (M+H)+.
'H-NMR (400 MHz, DMSO-d6): 6 [ppm] = 0.67 (d, 3H), 0.80 (d, 3H), 0.84 (d, 3H), .80 (m, 1H), 2.39-2.48 (m, 1H), .70 (m, 1H), 2.71—2.79 (m, 1H), 3.29—3.44 (m, 1H, partially ed by H20 signal), 4.13 (d, 1H), 7.00 (dd, 1H), 7.32-7.38 (m, 2H), 7.41-7.51 (m, 4H), 9.82 (s, 1H), 11.96 (br. s, 1H). ,)20 = +82°, c = 0.275, methanol.
The compounds listed in the table below were prepared in an analogous manner: —142- e Name/Structure/Starting material Analytical data 3-(4-chloro-3 — { [(2S,3R)(4-chlorophenyl)- LC-MS (Method 5): 4,4,4—trifluoro-3 —methylbutan0yl]amino}phenyl)- R[ : 1.30 min; m/Z : 504/506 3,4-dimethylpentanoic acid (diastereomer I ) (M+H)+.
HJC 'H—NMR (400 MHz, DMSO-d6): H30 CH, 8 [ppm] = 0.55 (d, 3H), 0.80 (d, 6H), 1.30 (s, 3H), 1.75-1.88 (m, CI 1H), 2.46—2.58 (d, 1H, obscured HN O by DMSO signal), 2.69 (d, 1H), 3.28-3.45 (m, 1H, partially HJCIII, 'I'I’ obscured by H20 signal), 4.13 (d, 1H), 7.12 (dd, 1H), 7.33 (d, F F Cl 1H), 7.43-7.51 (m, 5H), 9.81 (s, 1H), 11.75 (br. s, 1H). from methyl 3 -(4-Chloro-3— {[(ZS,3R)—2-(4-chloro— phenyl)-4,4,4-trifluoromethylbutanoyl]amino} - [0:150 : +95°, C : 0.285, phenyl)-3,4-dimethylpentanoate ereomer 1) methanol.
LC—MS d 5): 3-(4-chloro { [(25,3R)(4-ch10rophenyl)- Rl = 1.30 min; m/z = 504/506 4,4,4-trifluoro-3 —methylbutanoyl]amino}phenyl)- (M+H)+. 3,4-dimethylpentanoic acid ereomer 2) H3C ‘H-NMR (400 MHz, DMSO-d6): [ppm] = 0.56 (d, 3H), 0.80 (d, HO 6H), 1.30 (s, 3H), 1.75-1.89 (m, 1H), 2.46-2.57 (d, 1H, obscured by DMSO signal), 269 (d, 1H), HN O 3.29—3.45 (m, 1H, partially H3G,," "mg obscured by H20 signal), 4.13 (d, 1H), 7.12 (dd, 1H), 7.32 (d, F F Cl 1H), 7.42-7.48 (m, 4H), 7.49 (d, 1H), 9.81 (s, 1H), 11.75 (br. s, l from methyl 3-(4-chloro{[(2S,3R)(4-chlor0- 1H). phenyl)-4,4,4-trifluoromethy1butanoyl]amino}- [qu20 = +105.7°, c = 0.305, )-3,4-dimethy1pentanoate (diastereomer 2) methanol. -143— Name/Structure/Starting material Analytical data LC-MS (Method 5): h10ro-3—{[(2S,3R)—2—(4-chlorophenyl)— K : 1.32 min; m/z : 516/518 4,4,4-trifluoromethylbutanoyl]amino}phenyl)- I (M+H)+. 3—cyclobutylbutanoic acid (diastereomer 1) . 1H—NMR (400 MHz, DMSO-d6): 8 [ppm] = 0.80 (d, 3H), 1.31 (s, 3H), 1.41-1.52 (m, 1H), 1.52- HO 1.66 (m, 3H), 1.66-1.78 (m, 2H), 2.37 (d, 1H), 2.45-2.58 (m, 1H, ed by DMSO signal), 2.64 HN O (d, 1H), 3.28-3.47" (m, 1H, H30’": "Mg partially obscured by H20 signal), 4.13 (d, 1H), 7.10 (dd, F F CI F 1H), 7.33 (d, 1H), 7.40-7.52 (m, 5H), 9.81 (s, 1H), 11.83 (br. s, from methyl 3-(4-chloro{[(2S,3R)(4—chloro- 1H). phenyl)—4,4,4-trifluoromethy1butanoyl]amino} - pheny1)cyclobutylbutanoate (diastereomer 1) [00.320 = +105°, c = 0.250, methanol.
Name/Structure/Starting material I Analytical data LC—MS (Method 5): 3—(4—chloro {[(25,3R)—2—(4-ch10rophenyl)— $11.: 1.32 min; m/z : 516/518 trifluoromethylbutanoyl]amino}phenyl)- l (M+H)+. 3-cyclobutylbutanoic acid (diastereomer 2) 3 'H-NMR (400 MHz, DMSO-d6): I [ppm] = 0.80 (d, 3H), 1.31 (s, 0 an 3H), 1.42-1.52 (m, 1H), 1.52- H0 1.67 (m, 3H), 1.67-1.79 (m, 2H), 2.37 (d, 1H), 2.45-2.58 (m, 1H, obscured by DMSO signal), 2.64 HN o (d, 1H), 3.30-3.47 (m, 1H, H3C’l" 1,", partially obscured by H20 signal), 4.13 (d, 1H), 7.10 (dd, F F : ‘CI 1H), 7.33 (d, 1H), .52 (m, 5H), 9.81 (s, 1H), 11.84 (br. s, from methyl 3 -(4-ch10r0 { [(2S,3R)—2-(4-chloro- 1H). phenyl)-4,4,4-trifluoromethylbutanoyl]amino } - phenyl)cyclobutylbutanoate (diastereomer 2) [01130 = +1000, 0 = 0.30, methanol. l —145- Example Name/Structure/Starting material Analytical data 3-(4-chloro-3— {[(2S,3R)(4-ch10rophenyl)- 4,4,4—triflu0r0—3—methylbutan0yl]amin0}phenyl)— 3-cyclopropylbutanoic acid (diastereomer mixture) LC-MS (Method 4): R. = 1.54 min; m/z = 500/502 (M-H)‘.
'H-NMR (400 MHz, DMSO-dg): [ppm] = 0.77-0.85 (m, 5H), .02 (m, 1H), 1.15—1.28 (m, 2H), 1.42 (s, 3H), 2.62—2.72 (m, 1H), 3.01 (d, 1H), 3.28-3.43 (m, 1H, partially obscured by H20 signal), 4.09—4.17 (m, 1H), 7.08 from methyl 3-(4-chlor0—3- {[(2S,3R)—2-(4-chloro— (dd, 1H), .53 (m, 6H), 9.92 (d, 1H). phenyl)-4,4,4-trifluor0-3—methylbutan0yl]amin0}- phenyl)-3—cyclopropylbutanoate (diastereomer mixture) 3-(4-chloro{[(25,3R)(4-ethylphenyl)- LC-MS (Method 5): 4,4,4-trifluoromethylbutan0y1]amino}phenyl)- R. = 1.32 min; m/z = 484 4-methylpentanoic acid (diastereomer 1) (M+H)+.
H30 CH3 'H-NMR (400 MHz, é). [ppm] = 0.68 (d, 3H), 0.79 (d, 3H), 0.84 (d, 3H), 1.17 (t, 3H), 1.68-1.81 (m, 1H), .47 (m. 1H), 2.56-2.69 (m, 3H), 2.70— 2.79 (m, 1H), 3.27—3.40 (m, 1H, CH partially obscured by H20 F signal), 4.07 (d, 1H), 6.98 (dd, 1H), 7.20 (d, 2H), 7.30—7.41 (m, from methyl 3-(4-chloro { R)(4-ethyl- 4H), 9.73 (s, 1H), 11.95 (br. s, phenyl)-4,4,4-trifluoro-3 -methylbutan0yl] amino} — 1H). phenyl)methylpentanoate (diastereomer I) Name/Structure/Starting al Analytical data 3—(4—ch10r0 {[(25,3R)—2—(4-ch10r0fluoro- LC—MS d 5): pheny1)—4,4,4—triflu0r0—3-methylbutanoyl]- R. = 1.28 min; m/z = 508/510 amino}phenyl)methy1pentanoic acid (M+H)+. (diastereomer 1) H,c CH, 1H—NMR (400 MHZ, DMSO—dg): [ppm] = 0.68 (d, 2.79H, major diastereomer), 0.84 (t, 6H), 1.25 (d, 0.21H, minor diastereomer), 1.69-1.81 (m, 1H), 2.39-2.48 (m, 1H), 2.61-2.70 (m, 1H), 2.70- 2.81 (m, 1H), 3.37-3.48 (m, 1H), 4.15 (d, 1H), 7.01 (dd, 1H), 7.29-7.38 (m, 3H), 7.50 (dd, 1H), 7.62 (t, 1H), 9.87 (s, 0.93H, from methyl 3-(4-chloro{[(ZS,3R)(4-chloro- major diastereomer), 10.01 (s, 3-fluorophenyl)-4,4,4-trifluoromethylbutanoyl]- 0 07H minor diastereomer) ammo}pheny1)-4—methylpentanoate 11.96 (br. s, 1H) (86% de). (diastereomer 1) tructure/Starting material Analytical data 3—(4-ch10r0-3—{[(2S,3R)—4,4,4—triflu0ro— 2- 4-iso( pr0pyp1 hen lmethY) ylbutano laminoY] } - LC-MS d 5): phenyl)methylpentanoic acid (diastereomer 1) K = 1.35 min; m/z = 498/500 14,0 (M+H)+.
'H-NMR (400 MHz, DMSO-d6): 8 [ppm] = 0.68 (d, 3H), 0.79 (d, 3H), 0.84 (d, 3H), 1.19 (d, 6H), 1.67-1.80 (m, 1H), 2.36-2.47 (m, 1H), 2.60-2.70 (m, 1H), 2.70- 2.79 (m, 1H), 2.81—2.93 (m, 1H), 3.26—3.40 (m, 1H, obscured by H20 signal), 4.07 (d, 1H), 6.98 (dd, 1H), 7.20-7.28 (m, 2H), from methyl 3-(4-chloro{[(ZS,3R)- 730-143 (m, 4H), 9.73 (s, 1H), 4,4,4-trifluoro(4-isopropylphenyl)methyl- 11.95 (br. s, 1H). butanoyl]amino}phenyl)methylpentanoate (diastereomer 1) Example Name/Structure/Starting material Analytical data LC—MS (Method 5): 3—(4—chloro {[(2S,3R)—4,4,4—trifluor0- RI : 1.19 min; m/z = 474/476 2-(4—fluorophenyl)—3—methylbutanoyl]amino} — (M+H)+.
I, phenyl)—4-methy1pentanoic acid (diastereomer 1) 'H-NMR (400 MHz, DMSO-d6): OHJC 5 [ppm] = 0.68 (d, 2.76H, major diastereomer), 0.80 (d, 3H), 0.84 (d, 3H), 1.25 (d, 0.24H, minor CI diastereomer), 1.68-1.80 (m, "N 0 11 1H), 2.36-2.47 (m, 1H), 2.60- 2.70 (m, 1H), 2.70-2.80 (m, 1H), chlm ' 3.29-3.44 (m, 1H, partially F F QF obscured by H20 signal), 4.12 (d, 1H), 7.00 (dd, 1H), 7.22 (t, from methyl 3-(4-chloro{[(2S,3R)- 2H), -37 (m, 2H), 745- 4,4,4—trifluoro(4-fluorophenyl)methyl- 7‘52 (m, 2H): 9-80 (S, 0921i 1 butanoyl]amino}phenyl)methy1pentanoate major reomer), 9-94 (S, (diastereomer 1) 0.08H, minor diastereomer), i 11.96 (br. s, 1H) (34% de).
Name/Structure/Starting material Analytical data 3-[4—chloro-3 -( {4,4,4—triflu0ro—3—methyl- { 2-[4—(2,2,2-triflu0roethyl)phenyl]butanoyl}— LC'MS d 5): amino)phenyl]methylpentanoic acid R. = 1.26 min; m/z = 538/540 (diastereomer mixture) (M+H)+.
H,c CH 3 1H—NMR (400 MHz, DMSO-d6): [ppm] = 0.64-0.71 (m, 3H), 0.79 (d, 3H), 0.84 (d, 3H), 1.68— Cl 1.81 (m, 1H), 2.38—2.47 (m, 1H) 12 HN O 2.61—2.69 (m, 1H), 2.70-2.80 (m 1H), 3.28-3.44 (m, 1H, partially obscured by H20 signal), 3.64 (q, 2H), 4.11 (d, 1H), 6.99 (d, FFF F 1H), 7.30-7.39 (m, 4H), 7.46 (d, from methyl 3-[4-chloro( -trifluor0— 2H), 9.80 (s, 1H), 11.95 (br. s, 1H). 3-methy1[4-(2,2,2-trifluoroethyl)phenyl]- butanoyl} amino)pheny1]A-methylpentanoate (diastereomer mixture) Name/Structure/Starting material ical data 3—[4—chloro—3 -( {(2S,3R)—2-[4—(2,2—diflu0rocyclo— propyl)phenyl]-4,4,4-trifluor0—3-mcthylbutanoyl}- LC-MS (Method 5). amino)phenyl]methylpentanoic acid R‘ = 1.26 min; m/z = 532/534 (diastereomer mixture) (M+H)+. l ‘H—NMR (400 MHz, DMSO-d6): 8 [ppm] = 0.68 (d, 3H), 0.79 (d, 3H), 0.84 (d, 3H), 1.68-1.80 (m, 1H), 1.87-2.04 (m, 2H), 2.36- } "N O 2.47 (m, 1H), 2.61—2.69 (m, 1H), ) "BC," 2.70—2.79 (m, 1H), 2.93-3.06 (m, F 1H), 3.29—3.44 (m, 1H, partially F F ed by H20 signal), 4.10 F F (d, 1H), 6.99 (dd, 1H), 7.27 (d, from methyl 3-[4-chloro-3—({(2S,3R)- 2H), 7-33 (d, 1H), 7-37 (5’ 1H), 7'42 (d’ 2H)’ 9'77 (S’ 1H)’ "'95 2-[4-(2,2-difluorocyclopropyl)pheny1]- 4,4,4-trifluoromethy1butanoyl}amino)pheny1]- (br. s, 1H). 4-methy1pentanoate (diastereomer mixture) Name/Structure/Starting al Analytical data 3—(3- {[(2S,3R)—2—(4-tert—butylphenyl)- LC—MS (Method 5): 4,4,4—trifluoro—3—methylbutan0yl]amino} - R : 1.39 min; m/z = 512/514 4-ch1orophenyl)methylpentanoic acid (M+H)+. (diastereomer 1) OH3C CH3 ’H-NMR (400 MHz, DMSO-d6): [ppm] = 0.68 (d, 3H), 0.79 (d, HO 3H), 0.84 (d, 3H), 1.27 (s, 9H), 1.68-1.80 (m, 1H), 2.36-2.47 (m, Cl ‘ 1H), 2.60-2.69 (m, 1H), 2.70— ' HN 0 2.79 (m, 1H), 3.27—3.43 (m, 1H, 1 H300" partially obscured by H20 ), 4.08 (d, 1H), 6.97 (dd, F F , 1H), 7.30—7.44 (m, 6H), 9.73 (s, F CH‘ CH 0.96H, major diastereomer), 9.86 (s, 0.04H, minor from methyl 3-(3-{[(25,3R)-2—(4-tert—butylpheny1)- diastereomer), 11.95 (br. s, 1H) 4,4,4-trifluoromethy1butanoyl]amino}chloro- (92% de). phenyl)methylpentanoate (diastereomer I) Name/Structure/Starting material Analytical data 3-(4—ch10ro { [(25,3R)(4—ch10r0-3 -methoxy- phenyl)—4,4,4-triflu0ro—3—methylbutan0yl]amin0} — LC—MS (Method 5): phenyl)methylpentanoic acid ereomer I) R. I 1.24 min; m/z = 520/522 H c CH 3 3 o (M+H)+.
HO 'H-NMR (400 MHz, DMSO-d6): [ppm] = 0.68 (d, 3H), 0.80- 0.88 (m, 6H), 1.68-1.81 (m,1H), HN o 0H3 2.35-2.48 (m, 1H), 2.61-2.70 (m, 1H), 2.70-2.81 (m, 1H), 3.36- 3.49 (m, 1H). 3.87 (s, 3H), 4.10 F F 01 F (d, 1H), 7.01 (t, 2H), 7.23 (d, 1H), 7.32—7.37 (m, 2H), 7.43 (d, from methyl 3-(4-chloro 3R)(4-chloro- 1H), 9.81 (s, 1H), 11.96 (br. s, 3-meth0xyphenyl)—4,4,4—triflu0r0-3—methyl— 1H). butanoyl]amino}phenyl)methylpentan0ate (diastereomer 1) I .__ _—.— ’ 3-(4-chloro—3-{[(25,3R)-4,4,4-trifluoromethy1- LC—MS (Method 8): l‘ 2-(4—rnethylphenyl)butanoyl]amino}phenyl)- R. = 2.70 min; m/z = 470/472 4-methy1pentanoic acid (diastereomer I) i (M+H)+. up I 0 1H—NMR (400 MHz, DMSO-d6): 6 [ppm] = 0.68 (d, 3H), 0.79 (d, 3H), 0.84 (d, 3H), 1.68-1.80 (m, 1 c: 1H), 2.29 (s, 3H), 2.36-2.47 (m, HN o 16 1H), 2.61-2.69 (m, 1H), 2.70— 2.79 (m, 1H), 3.26-3.40 (m, 1H, partially ed by H20 F F CH, signal), 4.05 (d, 1H), 6.98 (dd, 1H), 7.17 (d, 2H), 7.29-7.39 (m, from methyl 3-(4-ch10r0-3—{[(2S,3R)- 4H), 9.73 (s, 0.96H, major 4,4,4-tr1fluor0methy1(4-methylphenyl)- diastereomer), 9.87 (s, 0.04H, butanoyl]amino } )methylpentanoate minor diastereomer), 11.95 (br. (diastereomer I) s, 1H) (92% de). —153- Example tructure/Starting material Analytical data 3-(4-ch1010 { [(25,3R)(4-chlor0methyl- LC-MS d 5): phenyl)—4,4,4-triflu0ro—3—methy1butan0yl]amin0}— R[ : 1.33 min; m/z : 504/506 phenyl)—4-methylpentan0ic acid (diastereomer I) (M+H)*.
OHJC CHJ 'H-NMR (400 MHz, DMSO-d6): [ppm] = 0.68 (d, 3H), 0.75— 0.89 (m, 6H), 1.68-1.81 (m, 1H), 2.33 (s, 3H), 2.36-2.59 (m, 1H, partially obscured by DMSO signal), 2.61-2.70 (m, 1H), 2.70- 2.81 (m, 1H), 3.25-3.43 (m, 1H, partially obscured by H20 signal), 4.07 (d, 1H), 7.00 (d, from methyl 3-(4—ch10r0—3-{[(ZS,3R)—2—(4—chlor0— 1H), 7.25—7.39 (m, 3H), 7.39- 3—methylpheny1)—4,4,4-triflu0ro—3-methylbutanoyl]- 7.47 (m, 2H), 9.81 (s, 1H), 11.95 amino}phenyl)methylpentan0ate (br. s, 1H). (diastereomer I ) 3-(4-ch10r0{[(4-ch10r0phenyl)(3,3-diflu0r0— cyclopentyl)acetyl]amino}pheny1)methy1- LC—MS (Method 8): oic acid (isomer I) Rt = 2.71 min; m/z = 498/500 up CH, 1| (M+H)*.
'H-NMR (400 MHz, DMSO-d6): = 0.67 (d, 3H), 0.84 (d, 1 5 [ppm] 3H), .69 (m, 2H), 1.70- "N 0 1.81 (m, 1H), 1.81-1.96(m,1H), 1.98—2.31 (m, 3H), 2.36—2.47 (m, 1H), 2.61-2.70 (m, 1H), 2.70— 2.80 (m, 1H), 2.80-2.93 (m, 1H), r CI 3.78 (d, 1H), 7.02 (dd, 1H), from methyl 3—(4-chloro{[(4-chlorophenyl)- 7'31‘7‘39 (m, 2H), 7-44 (q, 4H): (3,3-difluorocyclopentyl)acetyl]amino}phenyl)- 9'78 (S: 1H)> "'95 (br. 5: 1H)- 4-methylpentan0ate (isomer 1) ' Name/Structure/Starting material Analytical data 3-(4-chloro-3— {[(4-chlor0phenyl)(3 u0ro- cyclopentyl)acetyl]amin0}phenyl)-4—methyl— LC—MS (Method 8): pentanoic acid (isomer 2) R. : 2.71 min; m/Z : 498/500 011,0 CH3 (M+H)*.
'H-NMR (400 MHz, DMSO-d6): [ppm] = 0.67 (d, 3H), 0.85 (d, 3H), 1.52-1.69 (m, 2H), 1.70- HN 0 1.81(m,1H), .96 (m, 1H), 1.98-2.31 (m, 3H), 2.36-2.48 (m, 1H), 2.61-2.70 (m, 1H), 2.70- 2.79 (m, 1H), 2.80-2.93 (m, 1H), F CI 3.79 (d, 1H), 7.01 (dd, 1H), from methyl 3-(4—ch10ro{[(4—chlor0phenyl)- 7.32-7.39 (m, 2H), 7.43 (q, 4H), (3,3-diflu0rocyclopentyl)acetyl]amino}phenyl)— 9.77 (s, 1H), 11.95 (br. s, 1H). 4-methylpentanoate r 2) 3—(4-chloro{[(4-chlorophenyl)(3,3-difluoro- LC-MS (Method 8): cyclopentyl)acetyl]amino}phenyl)methy1- R) 2 2.71 min; m/z = 498/500 pentanoic acid r 3) (M+H)+. ()an 'H-NMR (400 MHz, DMSO-d6): [ppm] = 0.67 (d, 3H), 0.84 (d, 3H), 1.20-1.34 (m, 1H), 1.45- 1.56 (m, 1H), 1.70-1.81 (m, 1H), 1.85-2.19 (m, 3H), 2.28-2.40 (m, 1H), 2.40-2.53 (m, 1H,pama11y 1 obscured by DMSO signal), 2.61-2.70 (m, 1H), 2.70-2.90 (m, F Cl 2H), 3.75 (d, 1H), 7.02 (dd, 1H), ' from methyl 3-(4-chloro—3-{[(4-chlorophenyl)- 7.34 (d, 1H), 7.37 (d, 1H), 7.44 (3,3-difluorocyclopentyl)acety1]amino}pheny1)- (q, 4H), 9.74 (s, 1H), 11.95 (br. 4-methy1pentanoate (isomer 3) s, 1H).
Example Name/Structure/Starting material Analytical data 3-(4—ch10ro{[(4-ch10rophenyl)(3,3-difluoro- LC—MS (Method 8): cyclopentyl)acetyl]amino}phenyl)—4-methyl— K : 2.71 min; 111/2 2 498/500 pentanoic acid (isomer 4) (M+H)+.
'H—NMR (400 MHz, DMSO-d6): H0 5 [ppm] = 0.68 (d, 3H), 0.85 (d, cu 3H), 1.20-1.34 (m, 1H),1.45- 21 1.56 (m, 1H), 1.70-1.81 (m, 1H), W o 1.85-2.20 (m, 3H), 2.29-2.41 (m, 1H), 2.41-2.53 (m, 1H, partially obscured by DMSO signal), F C' 2.62-2.70 (m, 1H), .90 (m, 2H), 3.75 (d, 1H), 7.02 (dd, 1H), from methyl 3—(4—chloro-3 - { [(4-chlorophenyl)- 7.32—7.39 (m, 2H), 7.44 (q, 4H), (3 uor0cyclopentyl)acety1]amino}phenyl)— 9.73 (s, 1H), 11.95 (br. s, 1H). 4-methy1pentanoate (isomer 4) Example 22 (+)—3-(4-Chloro-3 - {[(23,3R)(4-ch1oropheny1)-4,4,4-trifluoromethy1butanoy1]amino}phenyl)- 3-cyclopropylpropanoic acid (diastereomer 2) 78 mg (0.14 mmol) of tert-butyl 3-(4-chloro{[(2S,3R)(4-chloropheny1)-4,4,4-trifluoro- ylbutanoyl]amino}pheny1)cyclopropylpropanoate (diastereomer 2; Example 99A) were —156- dissolved in 10 ml of dichloromethane, and 0.33 ml (4.3 mmol) of trifluoroacetic acid was added at RT. The reaction mixture was stirred at RT for 4 h and then diluted with 10 ml of water. The phases were separated, and the aqueous phase was then extracted three more times with dichloromethane. The combined organic phases were dried over ium sulphate and concentrated under reduced pressure. The crude product obtained in this manner was purified by preparative RP HPLC e phase methanol/water 8:2 isocratic). This gave 56 mg of the target compound (81% of theory).
LC-MS (Method 5): R = 1.20 min; m/z = 488/490 (M+H)+.
IH-NMR (400 MHZ, DMSO—d6): 5 [ppm] = 0.02-0.10 (m, 1H), 0.19-0.33 (m, 2H), 0.44—0.53 (m, 1H), 0.80 (d, 3H), 0.89-0.99 (m, 1H), .29 (m, 1H), 2.47-2.68 (m, 2H, partially obscured by DMSO signal), 3.30-3.43 (m, 1H, partially obscured by H20 ), 4.13 (d, 1H), 7.10 (dd, 1H), 7.36 (d, 1H), 7.42 (d, 1H), 7.43—7.50 (m, 4H), 9.84 (s, 1H), 12.04 (br. s, 1H). [0t]DZ° = +98.8°, c = 0.325, chloroform.
The compounds listed in the table below were ed in an analogous manner: -157— Name/Structure/Starting material Analytical data LC—MS (Method 5): (4-chloro—3—{[(28,3R)—2—(4—chlorophenyl)— K = 1.20 min; m/z : 488/490 l 4,4,4—trifluoro—3—methylbutanoy1]amino}pheny1)— (M+H)+. 3-cyclopropylpropanoic acid (diastereomer I) 1H-NMR (400 MHz, DMSO-d6): 0 5 [ppm] = .12 (m, 1H), 0.19-0.35 (m, 2H), 0.44-0.54 (m, 1H), 0.80 (d, 3H), 0.88-0.99 (m, 1H), 2.20-2.29 (m, 1H), 2.47- HN O 2.69 (m, 2H, partially obscured H3C’"! by DMSO signal), 3.29—3.43 (m, 1H, partially obscured by H20 F F"’/’©\Cl ), 4.13 (d, 1H), 7.10 (dd, 1H), 7.36 (d, 1H), 7.41 (d, 1H), from tert-butyl 3-(4-chloro{[(ZS,3R)- 7.43-7.50 (m, 4H), 9.84 (s, 1H), 2-(4-ch1orophcnyl)-4,4,4-trifluoromethyl- 12.03 (br. s, 1H). butanoyl]amino}phcnyl)cyclopropy1propanoate [011,320 = +57.3°, c = 0.355, (diastereomer 1) chloroform.
Name/Structure/Starting material Analytical data 3—(4—ch10r0—3- 3R)—2—(4—chlor0pheny1)— 4,4,4-triflu0ro-3—methylbutanoyl]amjno}phenyl)- 3-cyclobutylpropanoic acid (diastereomer mixture) LC-MS (Method 5); R, = 1.31 min; m/z = 502 (M+H)+. 1H—NMR (400 MHz, DMSO-dfi): [ppm] = 0.80 (d, 3H), 1.44- 1.62 (m, 2H), 1.62-1.75 (m, 3H), 1.97-2.02 (m, 1H), 2.29 (dd, 1H), 2.33-2.42 (m, 1H), 2.46 (dd, 1H), 2.87 (td, 1H), 3.36- 3.42 (m, 1H), 4.13 (d, 1H), 7.01 (dd, 1H), 7.33 (d, 1H), 7.37 (t, from tert-butyl 3-(4-chloro{[(25,310- 1H), 7.43-7.51 (m, 4H), 9.81 (s, 2-(4-ch1orophenyl)-4,4,4-trifluoromethyl- 1H), 11.99 (br. 5, ca. 1H). butanoyl]amino 1)cyclobuty1propanoate (diastereomer mixture) Example Name/Structure/Starting material Analytical data 3—(4-ch10r0-3— {[(2S,3R)(4—chlorophenyl)- 4,4,4—trifluor0-3—methylbutan0yl]amino } phenyl)— 4-methoxymethylpentanoic acid LC-MS (Method 7); (diaszereomer mixture) R4 = 126 min; m/z = 520/522 H + I M+H HJC ? ’ '( ) NBC 0 0 H—NMR (400 MHz, DMSO-dé): [ppm] = 0.80 (d, 3H), 0.94 (d, 3H), 1.00 (d, 3H), 1.33—1.40 (m, CI 1H), 2.70-2.78 (m, 1H), 3.10 (s, "N 0 3H),3.11-3.18 (m, 1H), 3.32- 3.44 (m, 1H, lly obscured ‘ ’©\ by H20 ), 4.12 (d, 1H), F F 7.08 (dd, 1H), 7.33 (dd, 1H), 7.42 (d, 1H), 7.43—7.50 (m, 4H), from tert—butyl 3-(4-chloro{[(2S,3R)- 9-83 (d, 1H), 11-91 (bf. S, ca. 2-(4-ch1oropheny1)-4,4,4-triflu0romethy1— 1H)- butanoyl]amino }phenyl)methoxy-4—methyl- pentanoate (diastereomer mixture) Analytical data 3-(4-ch10ro {[(2S,3R)—2—(4—chlorophenyl)- 4,4,4-trifluoromethylbutanoyl]amino}phenyl)— 3-(1—methy1cyclopropyl)propanoic acid LC'MS (Method 5): ereomer mixture) K = 1.27 min (diasz‘ereomer I), m/z = 502/504 (M+H)+; CH R1 = 1.31 min (diastereomer 2), m/z = 502/504 (M+H)*. lH-NMR (400 MHz, DMSO-d6): [ppm] : 0.80 (d, 3H), 0.88- 0.96 (m, 5H), 1.66—1.78 (m, 2H), 2.76-2.85 (m, 1H), 3.05-3.17 (m, 1H), 3.30-3.45 (m, 1H, partially obscured by H20 signal), 3.57- 3.66 (m, 1H), .18 (m, 1H), from tert-butyl 3-(4-chlor0{[(2S,3R)- 7.19 (dd, 1H), 7.40-7.51 (m, 2-(4-chlorophenyl)-4,4,4-trifluoromethyl- 6H), 9.92 (d, 1H). ‘ butanoyl]amino}pheny1)—3-(1-methylcyclopropyl)- I 1 propanoate ereomer mixture) Name/Structure/Starting material Analytical data h10ro—3— {[(28,3R)-2—(4—chlorophenyl)- 4,4,4-triflu0ro-3—methylbutan0yl]amin0}pheny1)— 3-(1-flu0r0cyclopropy1)propanoic acid LC—MS (Method 5): (diastereomer mixture) R1 = 1.18 min; mfz = 8 (M+H)+.
‘H—NMR (400 MHz, DMSO-dg): 8 [ppm] = 0.65-0.90 (m, 2H), 0.80 (d, 3H), 0.90-1.08 (m, 1H), 1.11-1.31(m,1H),1.56-1.73(m, 1H), 2.69-2.89 (m, 2H), 3.30- 3.44 (m, 1H, partially obscured by H20 signal), 4.13 (d, 1H), 7.14 (dd, 1H), 7.39 (d, 1H), 7.42-7.52 (m, 5H), 9.87 (s, 1H), from tert-butyl 3-(4-chloro{[(2S,3R)- 11.85-12.70 (br. 2-(4-ch1orophenyl)-4,4,4-trifluoromethy1— s, 1H). butan0y1]arnino}phenyl)—3—(l-fluorocyclopropy1)- propanoate (diastereomer mixture) ~162- Name/Structure/Starting material Analytical data 3—(4-chloro-3— {[(28,3R)—2-(4—chlor0phenyl)- 4,4,4-trifluoromethylbutanoyl]amin0 } phenyl)— 1 3-(3,3-difluorocyclobutyl)pr0panoic acid LC-MS (Method 5): l (diastereomer mixture) R[ = 1.24 min; m/z = 538/540 F F (M+H)+.
‘H-NMR (400 MHz, DMSO-d6): [ppm] = 0.80 (d, , 1.21- H0 1.31(m, 1.71H), 2.02-2.17 (m, 1H), 2.18-2.39 (m, 3H), 2.40— 23 CI 2.75 (m, 2H, partially obscured HN O by DMSO signal), 2.91-3.03 (m, H3C,,,l 1H), 3.17-3 .44 (m, 1H, lly obscured by H20 signal), 4.13 , F F Cl (d, 1H), 7.05-7.16 (m, 1H), 7.33-~ ‘ F 7.53 (m, 6H), 9.85 (s, 0.7H), from tert—butyl 3-(4-chloro-3 - { [(2S,3R)— 9.98 (s, 0.3H), 11.96-12.18 (br. 2-(4-ch10rophenyl)-4,4,4-trifluoromethy1— s, 1H). butanoyl] amino} phenyl)—3-(3 ,3-diflu0ro- utyl)propanoate (diastereomer mixture) Name/Structure/Starting material Analytical data 3-(4-ch101'o-3 - { [(25,3R)(4-chlorophenyl)- trifluoro—3—methylbutan0yl]amin0}phenyl)— 4—cyclopr0pylbutanoic acid (diastereomer e) Cl LC-MS (Method 5): HN O R = 1.29 min; m/z = 502/504 (M+H)+. from tert-butyl 3-(4-chloro—3-{[(ZS,3R)- 2-(4-chlorophenyl)-4,4,4—trifluoromethylbutanoyl ]amino}pheny1)cyclopropylbutanoate (diastereomer mixture) Example 30 3—(4-Ch10r0 {[(3R)(4-chlorophenyl)-4,4,4-trifluoromethylbutan0y1]amin0}pheny1)cyclo- propyl-Z-methylpropanoic acid (diastereomer mixture) HO / CHx \ HN 0 H301," \ F F v/ 250 mg (0.47 mmol) of ethyl 3-(4-chloro{[(25,3R)(4-chlorophenyl)-4,4,4-trifluoro-3—methyl- butanoyl]amino}phenyl)-3—cyclopropyl—2-methylpropanoate (diastereomer mixture; Example 129A) were ved in a e of 1.0 ml of methanol, 0.5 ml of THF and 0.5 ml of water, and 40 mg (0.94 mmol) of m hydroxide monohydrate were added at 0°C. The mixture was stirred initially at 0°C for 1 h and then at RT overnight. Another 40 mg (0.94 mmol) of lithium hydroxide monohydrate were then added, and the reaction solution was warmed to 50°C. After further stirring at this temperature overnight, 1 ml of methanol was metered into the reaction mixture, and the mixture was stirred at 60°C for a further 12 h. The solution was then diluted with water and acidified with 1 N hydrochloric acid (pH about 2). The aqueous phase was extracted three times with ethyl acetate. The ed organic phases were dried over magnesium sulphate and concentrated under reduced pressure. This gave 204 mg (86% of theory) of the title compound as a diastereomer mixture.
LC-MS (Method 7): Rt = 1.26 min, m/z = 502/504 (M+H)+ (diastereomer 1); R[ = 1.27 min, m/z = 502/504 (M+H)+ (diastereomer 2); R[ = 1.28 min, m/z = 4 (MJrH)+ (diastereomer 3); Rt 1.30 min, m/z = 502/504 (M+H)+ (diastereomer 4). 1H—NMR (400 MHz, é): 5 [ppm] = —0.20——0.05 (m, 0.85H), 0.13-0.36 (m, 2H), 0.47-0.65 (m, 0.85H), .75 (m, 0.3H), 0.80 (d, 2.63H), 0.93-1.09 (m, 1H), 1.17 (d, 1.5H), 1.21—1.29 (m, 1.87H), 1.84-2.08 (m, 1H), 2.61-2.77 (m, 1H), 3.16-3.27 (m, 0.5H), 3.28-3.43 (m, 0.5H, lly obscured by H20 ), 4.09—4.17 (m, 1H), 6.70—6.78 (m, 0.16H), 7.02—7.13 (m, 1H), 7.30—7.53 (m, 5.84H), 9.80—10.01 (m, 1H), 11.79—12.35 (br. m, 1H).
Example 31 3-(4—Chloro {[(3R)(4-chlorophenyl)-4,4,4-trifluoromethylbutanoyl]amino}phenyl)(2,2- difluorocyclopropyl)propanoic acid (diastereomer mixture 1) ~165— HN O H3C0" F F 114 mg (0.21 mmol) of methyl hloro—3—{[(25,3R)(4—chlorophenyl)-4,4,4—trifluoro- 3-methylbutanoyl]amino}phenyl)(2,2—difluorocyclopropyl)propanoate r 1; Example 124A) were ved in a mixture of 2 ml of dioxane and 1 ml of water, and 27 mg ll (0.64 mmol) of lithium hydroxide monohydrate were added. The mixture was stirred at RT overnight. The solution was then diluted with water and acidified with l N hydrochloric acid (pH about 2). The precipitated solid was filtered off with suction and dried under high vacuum overnight. This gave 89 mg (80% of theory) of the title compound as a diastereomer mixture in the form ofa white solid.
LC-MS (Method 5): Rt = 1.26 min; m/z = 524/526 (M+H)+. lH—NNIR (400 MHZ, DMSO—d6): 5 [ppm] = 0,80 (d, 1.63H), 1.04-1.19 (m, 1H), 1.26 (d, 1.37H), 1.36-1.50 (m, 1H), 1.97-2.14 (m, 1H), 2.46—2.82 (m, 3H, partially obscured by DMSO ), 3.15—3.43 (m, 1H, partially obscured by H20 signal), 4.07—4.17 (In, 1H), 7.17-7.26 (m, 1H), 7.36— 7.53 (m, 6H), 9.87 (s, 0.55H), 10.01 (s, 0.45H), 12.16 (br. s, 1H).
Example 32 3-(4-Chloro {[(3R)(4-chlorophenyl)-4,4,4—trifluoromethylbutanoyl] amino } phenyl)(2,2- difluorocyclopropy1)propanoic acid (diastereomer mixture 2) HN 0 H300" F F 115 mg (0.21 mrnol) of methyl 3-(4—chloro—3—{[(2S,3R)-2—(4—chloropheny1)-4,4,4—trifluor0- 3-methylbutanoyl]amino}phenyl)—3—(2,2—difluorocyclopropyl)propanoate (isomer 2; Example 125A) were dissolved in a mixture of 2 m1 of e and 1 ml of water, and 27 mg (0.64 mmol) of lithium hydroxide monohydrate were added. The mixture was stirred at RT overnight.
The solution was then d with water and acidified with 1 N hydrochloric acid (pH about 2).
The aqueous phase was extracted three times with dichloromethane. The combined organic phases were dried over magnesium sulphate and concentrated under reduced pressure. This gave 101 mg (90% of theory) of the title compound as a diastereomer mixture in the form of a less oil.
LC-MS (Method 5): R. = 1.26 min; m/z = 524/526 (M+H)+. 1H—NMR (400 MHZ, DMSO-d6): 5 [ppm] = 0.80 (d, 1.68H), 1.05-1.18 (m, 1H), 1.26 (d, 1.32H), 1.35-1.50 (m, 1H), 1.96—2.12 (m, 1H), 2.44—2.82 (m, 3H, partially obscured by DMSO ), .42 (m, 1H, partially ed by H20 signal), 4.08—4.16 (m, 1H), 7.17—7.25 (m, 1H), 7.37- 7.52 (m, 6H), 9.87 (s, 0.56H), 10.01 (s, 0.44H), 12.16 (br. s, 1H).
Example 33 and Example 34 (+)(4—Chlor0 { [(2S,3R)(4-chlorophenyl)-4,4,4-trifluoro—3-methy1butanoy1]amino } pheny1)- 3-cyclobutylpropan0ic acid (diastereomers 1 and 2) -l67- The diastereomer mixture ed above of 3—(4-chloro{[(2S,3R)(4-chlorophenyl)-4,4,4-tri- fluoromethylbutanoyl]amino}phenyl)—3-cyclobutylpropanoic acid (Example 24) was ted further by preparative HPLC on a chiral phase nz Daicel Chiralpak AD-H, 5 11m, 250 mm x mm; injection volume: 0.40 ml; mobile phase: 90% isohexane/10% isopropanol; flow rate: ; detection: 220 nm; temperature: 25°C]. 63 mg of diastereomer mixture gave 29 mg of diastereomer 1 (Example 33) and 32 mg of diastereomer 2 (Example 34).
Example 33 (diastereomer 1 2: LC—MS (Method 5): R. : 1.31 min; m/z = 502 (M+H)*.
'H—NMR (400 MHz, DMSO-dé): 3 [ppm] : 0.80 (d, 3H), 1.45-1.62 (m, 2H), 1.62-1.79 (m, 3H), 1.97—2.03 (m, 1H), 2.24—2.39 (m, 2H), 2.42—2.47 (m, 1H), 2.87 (td, 1H), 3.35-3.40 (m, 1H), 4.13 (d, 1H), 7.01 (dd, 1H), 7.23—7.39 (m, 2H), 7.42—7.54 (m, 4H), 9.81 (s, 1H), 11.98 (br. s, 1H). ,," : +690, 0 : 0.260, chloroform.
Example 34 (diastereomer 2 Q: LC-MS (Method 5): RI = 1.31 min; m/z = 502 .
'H-NMR (400 MHz, DMSO-dé): 5 [ppm] = 0.80 (d, 3H), 1.45-1.63 (m, 2H), 1.63-1.76 (m, 3H), 1.98-2.04 (m, 1H), 2.22—2.42 (m, 2H), 2.44-2.48 (m, 1H), 2.87 (td, 1H), 4.13 (d, 1H), 7.02 (dd, 1H), 7.33 (d, 1H), 7.37 (d, 1H), 7.42—7.51 (m, 4H), 9.81 (s, 1H), 12.00 (br. s, 1H). ];20 = +53°, c = 0.250, chloroform.
Example 35 and Example 36 hloro—3- { [(2S,3R) -2—(4—chlorophenyl)—4,4,4—trifluoromethylbutanoyl]amino } phenyl)- 4-cyclopropylbutanoic acid ereomers 1 and 2) 'JI 55 mg (0.11 mmol) of the diastereomer mixture of 3-(4—chloro-3—{[(2S,3R)—2—(4-ch10rophenyl)- 4,4,4—triflu0ro—3-methylbutan0yl]amino}phenyl)—4—cyclopropylbutanoic acid (Example 29) were separated further by preparative HPLC on a chiral phase [column: Daicel Chiralpak AD—H, 5 um, 250 mm x 20 mm; mobile phase: isohexane/ethanol 90:10 (v/v); flow rate: 15 ml/min; UV ion: 220 nm; temperature: 30°C]: Example 35 gdz‘astereomer 1): Yield: 28 mg Rt = 7.47 min; chemical purity >99%; >99% de [Column: Chiralpak AD-H, 5 um, 250 mm x 4.6 mm; mobile phase: ane/(ethanol + 0.2% trifluoroacetic acid + 1% water) 90:10 (v/v); flow rate: 1 ml/min; UV detection: 220 nm; temperature: 30°C].
LC—MS (Method 5): R[ : 1.26 min; m/z : 502/504 (M+H)+. 1H—NMR (400 MHz, é): 5 [ppm] = -0.14--0.06 (m, 1H), -0.06--0.03 (m, 1H), 0.22-0.37 (m, 2H), 0.39-0.50 (m, 1H), 0.80 (d, 3H), 1.27-1.36 (m, 1H), 1.45-1.56 (m, 1H), 2.39-2.47 (m, 1H), 2.57-2.66 (m, 1H), 2.99-3.09 (m, 1H), 3.28-3.43 (m, 1H, partially obscured by H20 signal), 4.13 (d, 1H), 7.07 (dd, 1H), 7.35 (d, 1H), 7.41 (d, 1H), 7.43-7.50 (m, 1H), 9.82 (s, 1H), 12.02 (br. s, 1H).
MD" = +41°, c = 0.260, chloroform.
Example 36 (diastereomer 2 1: Yield: 25 mg Rt = 8.75 min; al purity >99%; >98.7% de [Column: Chiralpak AD-H, 5 pm, 250 mm x 4.6 mm; mobile phase: isohexane/(ethanol + 0.2% trifluoroacetic acid + 1% water) 90:10 (V/v); flow rate: 1 ml/min; UV detection: 220 nm; temperature: 30°C].
LC-MS (Method 5): R = 1.26 min; m/z = 502/504 (M+H)+. 1H—NMR (400 MHz, DMSO-dg): 8 [ppm] : —0.14—-0.07 (m, 1H), —0.06-—0.02 (m, 1H), 0.22-0.36 (m, 2H), .49 (m, 1H), 0.80 (d, 3H), 1.27—1.36 (m, 1H), 1.46—1.55 (m, 1H), 2.39-2.47 (m, 1H), 2.58—2.66 (m, 1H), 2.99—3.09 (m, 1H), 3.28-3.43 (m, 1H, partially obscured by H20 signal), 4.13 (d, 1H), 7.07 (dd, 1H), 7.35 (d, 1H), 7.42 (d, 1H), .50 (m, 4H), 9.82 (s, 1H), 12.02 (br. s, 1H).
The following compound was prepared analogously to Example 22: -170— Name/Structure/Starting material Analytical data hloro—3— {[(2S,3R)—2-(4—chlorophenyl)- 4,4,4—trifluor0—3-methylbutan0yl]amino}phenyl)— LC-MS (Method 7): ethylcyclopropyl)butanoic acid RI = 1.34 min; m/z = 516/518 (diastereomer mixture) (M+H)+.
‘H—NMR (400 MHz, DMSO-dé): 8 [ppm] = -0.16--0.09 (m, 1H), HO -0.09--0.02 (m, 1H), 0.11-0.18 (m, 1H), 0.18-0.25 (m, 1H), 0.80 (d, 3H), 0.92 (d, 3H), 1.47-1.55 (m, 2H), 2.31-2.42 (m, 1H), 2.57—2.65 (m, 1H), 3.05—3.20 (m, 1H), 3.28-3.43 (m, 1H, partially obscured by H20 signal), 4.12 (d, 1H), 7.01-7.13 (m, 1H), 7.33 from tert-butyl 3-(4-chloro-3 - { R)— (d,1H), 7.39-7.51(m, 5H), 9.81 2-(4-ch1orophenyl)-4,4,4-trifluoromethy1— (d, 1H), 12.03 (br. s, 1H). butanoyl]amino } pheny1)( 1 -methy1cyclopropyl)- butanoate (diastereomer mixture) ~171- B. Aggssment of the pharmacological aegivig The pharmacological effect of the nds ing to the invention can be shown in the following assays: B-l. Stimula ' recombinant e tcc clas sGC invllm Investigations on the stimulation of recombinant soluble ate e (sGC) by the compounds according to the invention with and without sodium nitroprusside, and with and Without the haem-dependent sGC inhibitor lH-l,2,4-oxadiazolo[4,3a]quinoxalinone (ODQ), are carried out by the method described in detail in the following reference: M. Hoenicka, E.M.
Becker, H. Apeler, T. Sirichoke, H. Schroeder, R. Gerzer and J.-P. Stasch, "Purified soluble guanylyl cyclase expressed in a baculovirus/Sf9 system: Stimulation by YC-l, nitric oxide, and carbon oxide", J. M01. Med. fl (1999), 14-23. The haem-free guanylate cyclase is obtained by adding Tween 20 to the sample buffer (0.5% in the final concentration).
The activation of sGC by a test substance is reported as x—fold stimulation of the basal activity.
The result for Example 22 is shown in Table 1: Table l: Stimulation (x—fold) of recombinant soluble guanylate cyclase (sGC) in vitro by Example 22 Concentration Haem-containing sGC Haem-free sGC Example 22 Basal +0.01 M" +10 M [HM] " Basal (n=5) DEA/NO ODQ (n=5) 14.2 i 2.0 [DEA/NO = 2-(N,N-diethylamino)diazenolate 2-oxide; ODQ = 1H—1,2,4-oxadiazolo- [4,3a]quinoxalinone].
It is evident from Table 1 that stimulation both of the haem-containing and of the haem—free enzyme is achieved. Furthermore, combination of Example 22 and 2-(N,N—diethy1amino)— diazenolate 2-0xide (DEA/NO), an NO donor, shows no synergistic effect, i.e. the effect of DEA/NO is not potentiated as would be expected with an sGC activator acting via a haem— dependent mechanism. In addition, the effect of the sGC activator according to the invention is not blocked by lH—l,2,4-oxadiazolo[4,3a]quinoxalin—1-one (ODQ), a haem—dependent tor of soluble guanylate cyclase, but is in fact increased. The s in Table 1 thus confirm the mechanism of action of the compounds according to the invention as activators of soluble guanylate cyclase.
IO B-2. 3.51191) .11 .1 ruininleggiij L'll.’_l_n\'l.ll\: (H:lilich‘jiflcflg‘g" lim- The cellular action of the compounds according to the invention is determined at a recombinant guanylate e reporter cell line, as described in F. Wunder et al., Anal. m. &, 104-112 (2005).
Representative results for the compounds according to the ion are listed in Table 2: Table 2: sGC—activating activity in the CH0 reporter cell in vitro ' — i 1 Example No. MEC [nM] 1 3 r——‘ i——— 2 6.5 i _ _ —l 3 0.3 4 i 3 l 0.3 6 i 1 . 7 i 300 i ‘ 8 I 1 1 l 9 l 1 1 _ _I—— T T l 0.3 ‘ 11 3 l2 1 -173— Example No. MEC [nM] (MEC = minimum effective concentration).
B-3. Stimulation of sGC en_z3Lne g Soluble guanylate cyclase (sGC) converts on stimulation GTP into cGMP and pyrophosphate (PPi). PPi is ed with the aid of the assay described below. The signal produced in the assay increases as the reaction progresses and serves as a measure of the sGC enzyme activity under the given stimulation.
To carry out the assay, 29 ul of enzyme solution [0—10 nM soluble guanylate cyclase (prepared according to Honicka et al., J. M01. Med. 77, 14—23 (1999)) in 50 mM TEA, 2 mM MgC12, 0.1% BSA (fraction V), 0.005% Brij®, pH 7.5] are initially introduced into a late, and 1 pl of the substance to be tested (as a serially diluted solution in DMSO) is added. The mixture is incubated at room temperature for 10 min. Then 20 pl of detection mix [1.2 nM Firefly Luciferase (Photinus pyralis rase, Promega), 29 uM dehydroluciferin (prepared according to Bitler & McElroy, Arch. Biochem. Biophys. E, 358 ), 122 pM luciferin (Promega), 153 uM ATP (Sigma) and 0.4 mM DTT (Sigma) in 50 mM TEA, 2 mM MgC12, 0.1% BSA ion V), 0.005% Brij®, pH 7.5] are added. The enzyme reaction is started by adding 20 pl of substrate solution [1.25 mM guanosine 5’—triphosphate (Sigma) in 50 mM TEA, 2 mM MgC12, 0.1% BSA (fraction V), 0.005% Brij®, pH 7.5] and measured continuously in a luminometer. The extent of the stimulation by the [5 substance to be tested can be ined relative to the signal of the unstimulated reaction.
The activation of haem-free guanylate e is examined by addition of 25 uM of 1H—l,2,4-oxa- diazolo[4,3—a]quinoxalin-l—one (ODQ) to the enzyme solution and subsequent incubation for minutes and compared to the stimulation of the native enzyme.
Representative results for the compounds according to the invention are listed in Table 3: Table 3: Activating action at the sGC enzyme in vitro Example No. ' MEC [nM] EC50 [nM] _ _ 71 7- —l— i ‘ | .p————2 TI——4 I ifl i i i ‘ 3 i 1 37 i—7 4i; i 2.4 17110 I- ———_ 0.3 5 2 l7 — 6— T —1 i 1 56 —10 . 0.5 10 ‘ T 12 1 1 17 Example N0.
(MEC = minimum effective concentration; EC50 = concentration at 50% of maximum efficacy).
B-4, Vasorelaxant effect in vitro Rabbits are anaesthetized and sacrificed by intravenous injection of thiopental sodium (about 50 mg/kg) and exsanguinated. The saphenous artery is removed and divided into rings 3 mm wide.
The rings are mounted singly on in each case a pair of triangular hooks open at the end and made of 0.3 mm—thick special wire (Remanium®). Each ring is placed under an initial tension in 5 ml organ baths with Krebs-Henseleit solution which is at 37°C, is gassed with carbogen and has the following composition: NaCl 119 mM; KCl 4.8 mM; CaClz x 2 H20 1 mM; MgSO4 x 7 H20 1.4 mM; KH2P04 1.2 mM; NaHCO3 25 mM; glucose 10 mM; bovine serum albumin 0.001%. The force of contraction is detected with Statham UC2 cells, ed and digitized via AfD ters (DAS-1802 HC, Keithley Instruments, Munich) and recorded in parallel on chart recorders. Contractions are induced by addition of phenylephrine.
After several ally 4) control cycles, the substance to be investigated is added in each further run in sing dosage, and the level of the contraction achieved under the ce of the test substance is compared with the level of the contraction reached in the last ing run. The tration necessary to reduce the contraction reached in the preceding control by 50% is calculated from this (ICSO). The standard application volume is 5 141. The proportion of DMSO in the bath solution corresponds to 0.1%.
Representative results for the compounds according to the invention are listed in Table 4: Table 4: laxant effect in vitro 16 | 767 l 22 I 137 B—5. Radiulclcmclric measurement of blood arcssurggnd hfll‘j rate on uunscmus SH rats A commercially available telemetry system from Data Sciences International DSI, USA, is employed for the measurements on conscious SH rats described below.
The system ts of 3 main components: (I) implantable transmitters, (2) receivers, which are linked via a multiplexer to a (3) data acquisition computer. The telemetry system makes it possible to continuously record the blood pressure and heart rate of conscious animals in their usual habitat.
The investigations are carried out on adult female spontaneously hypertensive rats (SH rats) with a body weight of > 200 g. After transmitter implantation, the experimental animals are housed singly in type 3 Makrolon cages. They have free access to rd feed and water. The day/night rhythm in the experimental laboratory is changed by the room lighting at 6.00am and at 7.00pm.
The telemetry transmitters (TAM PA-C40, DSI) employed are surgically implanted under aseptic conditions in the experimental s at least 14 days before the first experimental use. The animals instrumented in this way can be employed repeatedly after the wound has healed and the implant has d.
For the implantation, the fasted animals are anaesthetized with pentobarbital (Nembutal, Sanofi, 50 mg/kg i.p.) and shaved and disinfected over a large area of their abdomens. After the nal cavity has been opened along the linea alba, the liquid—filled measuring catheter of the system is inserted into the descending aorta in the cranial direction above the bifurcation and fixed with tissue glue (VetBonDTM, 3M). The transmitter g is fixed intraperitoneally to the abdominal wall muscle, and layered e of the wound is performed. An antibiotic (Tardomyocel COMP, Bayer AG, 1 ml/kg so) is administered postoperatively for laxis of infection. —177— Outline of experiment: The substances to be investigated are administered orally by gavage in each case to a group of animals (n : 6). The test substances are dissolved in suitable solvent mixtures, or suspended in 05% strength Tylose, appropriate for an administration volume of 5 ml/kg of body weight. A 'J- solvent—treated group of animals is employed as control.
The telemetry measuring unit is configured for 24 animals. Each experiment is recorded under an experiment number.
Each of the instrumented rats living in the system is assigned a separate receiving antenna (1010 Receiver, DSI). The implanted transmitters can be activated externally by means of an incorporated magnetic switch and are switched to transmission in the run-up to the experiment.
The emitted signals can be detected online by a data ition system (DataquestTM A.R.T. for Windows, DST) and be appropriately processed. The data are stored in each case in a file created for this e and bearing the experiment number.
In the standard procedure, the following are measured for lO—second periods in each case: (I) systolic blood pressure (SBP), (2) diastolic blood re (DBP), (3) mean arterial pressure (MAP) and (4) heart rate (HR).
The ition of measured values is repeated under computer control at te intervals. The source data ed as absolute value are ted in the diagram With the currently measured tric pressure and stored as individual data. Further technical details are given in the documentation from the manufacturing company (DSI).
The test nces are administered at 9.00am on the day of the ment. Following the administration, the parameters described above are measured over 24 hours. After the end of the experiment, the acquired individual data are sorted using the analysis software (DataquestTM A.R.T.
Analysis). The void value is assumed to be the time 2 hours before administration of the substance, so that the selected data set includes the period from 7.00am on the day of the experiment to 9.00am on the following day.
The data are ed over a presettable time by determination of the average nute average, ute average) and transferred as a text file to a storage medium. The measured values presorted and compressed in this way are transferred into Excel templates and tabulated.
C. Exemplary gmhodlmcnls of ghlrmucculkal compositions The nds ing to the ion can be converted into pharmaceutical preparations in the ing ways: Tablet: Composition: 100 mg of the compound according to the invention, 50 mg of lactose (monohydrate), 50 mg of maize starch (native), 10 mg of polyvinylpyrrolidone (PVP 25) (from BASF, Ludwigshafen, Germany) and 2 mg of magnesium stearate.
Tablet weight 212 mg, diameter 8 mm, radius of curvature 12 mm.
Production: The mixture of compound according to the invention, lactose and starch is granulated with a 5% strength solution (m/m) of the PVP in water. The granules are dried and then mixed with the magnesium stearate for 5 minutes. This mixture is compressed in a conventional tablet press (see above for format of the tablet). A guideline compressive force for the compression is 15 kN.
Susmnsion which can be stered : Composition: 1000 mg of the compound according to the invention, 1000 mg of ethanol (96%), 400 mg of Rhodigel® (xanthan gum from FMC, Pennsylvania, USA) and 99 g of water. ml of oral suspension correspond to a single dose of 100 mg of the compound according to the invention.
Production: The Rhodigel is suspended in l, and the compound according to the invention is added to the suspension. The water is added while stirring. The mixture is stirred for about 6 h until the swelling of the Rhodigel is complete.
Solution which can be administered orall ': Composition: 500 mg of the compound according to the invention, 2.5 g of polysorbate and 97 g of hylene glycol 400. 20 g of oral solution correspond to a single dose of 100 mg of the II. compound according to the invention.
Production: The compound ing to the invention is suspended in the mixture of polyethylene glycol and polysorbate with stirring. The stirring process is continued until the compound ing to the invention has completely dissolved. i.v. solution: The compound according to the invention is dissolved in a concentration below the saturation solubility in a physiologically tolerated solvent (e.g. isotonic saline, 5% glucose on and/or % PEG 400 solution). The solution is sterilized by filtration and used to fill sterile and pyrogen-free ion containers.

Claims (11)

1. Patent claims 1.
2. Compound of the formula (1) 3
3. R. L R] R' R" HN O R“ (I), in which ‘JI R], R2 and R3 ndently of one another represent hydrogen or methyl, l. represents a bond or represents -CH2-, RM and R48 independently of one another ent methyl, trifluoromethyl or ethyl R4A and R413 are attached to one another and er with the carbon atom to which they 10 are attached form a cyclopropyl 0r cyclobutyl ring which may be substituted up to two times by fluorine, represents hydrogen, fluorine, methyl or methoxy, represents hydrogen, fluorine, chlorine, bromine, cyano, methyl, trifluoromethyl, ethyl, methoxy or trifluoromethoxy, 15 represents hydrogen, fluorine, chlorine or methyl, represents methyl or ethyl, ents trifluoromethyl, R8’“ and R813 are attached to one another and together with the carbon atom to which they are attached form an optionally difluoro-substituted cyclopentyl ring of the formula O’f . . R9 represents fluorine, chlorine, e, cyano, (Cl-C4)-alkyl, (C2-C4)-alkenyl, cyclopropyl or cyclobutyl, where (C1-C4)-alkyl and (C2-C4)-alkenyl may be substituted up to three times by fluorine cyclopropyl and cyclobutyl may be substituted up to two times by fluorine, 10 and RJO ents en, fluorine, chlorine, methyl, trifluoromethyl, ethyl or methoxy, and salts, solvates and solvates of the salts thereof. Compound of the formula (1) according to Claim 1 in which R1 represents hydrogen or methyl, 15 R2 ents hydrogen, R3 represents hydrogen or methyl, L represents a bond or ents -CH2-, R4A and R48 both ent methyl or are attached to one another and together with the carbon atom to which they are attached form a cyclopropyl or cyclobutyl ring 20 which may be substituted up to two times by fluorine, R5 represents hydrogen, fluorine, methyl or methoxy, R6 represents fluorine, chlorine, methyl or ethyl, R7 represents hydrogen or fluorine, R8A represents methyl, R88 represents trifluoromethyl, RM and R813 are attached to one another and together with the carbon atom to which they are attached form a difluoro-substituted cyclopentyl ring of the formula R9 represents fluorine, ne, )-a1kyl, (C2-C3)-alkenyl, cyclopropyl or cyclobutyl, where (C1—C4)—alkyl and (C2-C3)—a1kenyl may be substituted up to three times by fluorine 10 and cyclopropyl and cyclobutyl may be tuted up to two times by fluorine, R'0 represents hydrogen, fluorine, chlorine, methyl or methoxy, and salts, solvates and solvates of the salts thereof.. 15 Compound of the formula (1) according to Claim 1 or 2 in which RI and R2 both represent hydrogen, R3 represents hydrogen or methyl, L represents a bond or represents —CH2—, RM and R413 both represent methyl or are attached to one r and together with the 20 carbon atom to which they are attached form a cyclopropyl or cyclobutyl ring which may be tuted up to two times by fluorine, R5 represents hydrogen, fluorine or methyl, R6 represents chlorine, R7 represents en, R8A represents methyl, R8B represents trifluoromethyl, 5 R9 represents fluorine, chlorine, methyl, trifluoromethyl, ethyl, 2,2,2-trifluoroethyl, isopropyl, utyl, cyclopropyl or 2,2-difluorocyclopropyl, R10 represents hydrogen, fluorine, methyl or methoxy, and salts, solvates and solvates of the salts thereof. 10
4. Compound of the formula (I) according to any of Claims 1 to 3, wherein the compound is: HN O F F Cl and salts, solvates and solvates of the salts thereof.
5. Process for preparing a nd of the formula (I) as defined in any of Claims 1 to 4, characterized in that a carboxylic acid of the formula (II) HO O R9 (II), in which R8A, R8B, R9 and R10 have the meanings given in any of Claims 1 to 3, 7297336_1 ters) P94789.NZ JENNYP is coupled in an inert solvent with the aid of a condensing agent or via the intermediate of the corresponding carbonyl chloride in the ce of a base with an amine of the formula (III) O R3 R5 T1 O R1 R2 2 (III), 5 in which L, R1, R2, R3, R4A, R4B, R5, R6 and R7 have the meanings given in Claims 1 to 3 T1 represents (C1-C4)-alkyl or benzyl, to give a carboxamide of the formula (IV) O R3 R5 T1 O R1 R2 HN O R9 (IV), 10 in which L, R1, R2, R3, R4A, R4B, R5, R
6. , R7, R8A, R8B, R9, R10 and T1 have the meanings given above, and the ester radical T1 is then removed by basic or acidic solvolysis or, in the case that T1 ents , also by hydrogenolysis to give the carboxylic acid of the formula (I) and the compounds of the formula (I) are optionally separated by methods known to the 15 person skilled in the art into their enantiomers and/or diastereomers and/or reacted with the 7297336_1 (GHMatters) P94789.NZ JENNYP appropriate (i) solvents and/or (ii) bases to give their solvates, salts and/or solvates of the salts. 6. nd as d in any of Claims 1 to 4 for the treatment and/or prevention of diseases. 5
7. Use of a compound as d in any of Claims 1 to 4 for preparing a ment for the treatment and/or tion of heart failure, angina pectoris, hypertension, pulmonary hypertension, thromboembolic disorders, ischaemias, vascular disorders, microcirculation impairments, renal insufficiency, fibrotic disorders and arteriosclerosis.
8. Medicament comprising a compound as defined in any of Claims 1 to 4 in combination 10 with one or more inert, non-toxic, ceutically suitable excipients.
9. Medicament comprising a compound as defined in any of Claims 1 to 4 in combination with one or more further active compounds selected from the group consisting of organic nitrates, NO donors, cGMP-PDE inhibitors, stimulators of guanylate cyclase, agents having antithrombotic activity, agents lowering blood pressure, and agents altering lipid 15 metabolisms.
10. Medicament according to Claim 8 or 9 for the treatment and/or prevention of heart failure, angina pectoris, hypertension, pulmonary hypertension, thromboembolic disorders, ischaemias, vascular disorders, microcirculation impairments, renal insufficiency, fibrotic disorders and arteriosclerosis. 20
11. A compound as d in any of Claims 1 to 4 and 6, a process as defined in Claim 5, use as d in Claim 7, or medicament as defined in any one of Claims 8 to 10, substantially as herein described with reference to any one of the es. 7297336_1 (GHMatters) P94789.NZ JENNYP
NZ616274A 2011-04-13 2012-03-28 Branched 3-phenylpropionic acid derivatives and the use thereof NZ616274B2 (en)

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DE102011007272A DE102011007272A1 (en) 2011-04-13 2011-04-13 Branched 3-phenylpropionic acid derivatives and their use
DE102011007272.1 2011-04-13
PCT/EP2012/055474 WO2012139888A1 (en) 2011-04-13 2012-03-28 Branched 3-phenylpropionic acid derivatives and the use thereof

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