CA1106376A - Process for the preparation of novel anthranilic esters - Google Patents
Process for the preparation of novel anthranilic estersInfo
- Publication number
- CA1106376A CA1106376A CA199,329A CA199329A CA1106376A CA 1106376 A CA1106376 A CA 1106376A CA 199329 A CA199329 A CA 199329A CA 1106376 A CA1106376 A CA 1106376A
- Authority
- CA
- Canada
- Prior art keywords
- formula
- trifluoromethyl
- quinolyl
- piperazinyl
- halogen atom
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000000034 method Methods 0.000 title claims abstract description 23
- 150000002148 esters Chemical class 0.000 title claims abstract description 7
- 238000002360 preparation method Methods 0.000 title claims abstract description 6
- 150000003839 salts Chemical class 0.000 claims abstract description 11
- 125000005843 halogen group Chemical group 0.000 claims abstract description 10
- 150000001875 compounds Chemical class 0.000 claims abstract description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims abstract description 6
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 6
- 239000011707 mineral Substances 0.000 claims abstract description 6
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 claims abstract description 6
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 5
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 5
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 5
- 125000003545 alkoxy group Chemical group 0.000 claims abstract description 4
- RWZYAGGXGHYGMB-UHFFFAOYSA-N anthranilic acid Chemical compound NC1=CC=CC=C1C(O)=O RWZYAGGXGHYGMB-UHFFFAOYSA-N 0.000 claims abstract description 4
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims abstract description 4
- 125000005034 trifluormethylthio group Chemical group FC(S*)(F)F 0.000 claims abstract description 4
- 125000000876 trifluoromethoxy group Chemical group FC(F)(F)O* 0.000 claims abstract description 4
- 150000007522 mineralic acids Chemical class 0.000 claims abstract 4
- 150000007524 organic acids Chemical class 0.000 claims abstract 4
- 235000005985 organic acids Nutrition 0.000 claims abstract 3
- 239000002253 acid Substances 0.000 claims description 10
- -1 atom halogen Chemical class 0.000 claims description 10
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- HXOIESYGIXBVCW-UHFFFAOYSA-N 1-[4-(4-chlorophenyl)piperazin-1-yl]ethanol Chemical compound C1CN(C(O)C)CCN1C1=CC=C(Cl)C=C1 HXOIESYGIXBVCW-UHFFFAOYSA-N 0.000 claims description 3
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical group [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 claims description 3
- 229910052783 alkali metal Inorganic materials 0.000 claims description 3
- 150000001340 alkali metals Chemical group 0.000 claims description 3
- 239000000460 chlorine Substances 0.000 claims description 3
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 3
- 150000004702 methyl esters Chemical class 0.000 claims description 3
- 229910000104 sodium hydride Inorganic materials 0.000 claims description 3
- 239000012312 sodium hydride Substances 0.000 claims description 3
- 229910000102 alkali metal hydride Inorganic materials 0.000 claims description 2
- 150000008046 alkali metal hydrides Chemical class 0.000 claims description 2
- 229910052801 chlorine Inorganic materials 0.000 claims description 2
- 125000001309 chloro group Chemical group Cl* 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 4
- 125000004429 atom Chemical group 0.000 claims 4
- 229910052799 carbon Inorganic materials 0.000 claims 4
- 229910052736 halogen Inorganic materials 0.000 claims 1
- 150000004678 hydrides Chemical class 0.000 claims 1
- 239000001257 hydrogen Substances 0.000 claims 1
- 230000003110 anti-inflammatory effect Effects 0.000 abstract description 3
- 230000000202 analgesic effect Effects 0.000 abstract description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 15
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 239000000047 product Substances 0.000 description 5
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000003826 tablet Substances 0.000 description 4
- 206010061218 Inflammation Diseases 0.000 description 3
- 150000007513 acids Chemical class 0.000 description 3
- 230000004054 inflammatory process Effects 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 241000699666 Mus <mouse, genus> Species 0.000 description 2
- 208000002193 Pain Diseases 0.000 description 2
- 239000004480 active ingredient Substances 0.000 description 2
- 239000002775 capsule Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002757 inflammatory effect Effects 0.000 description 2
- 239000007928 intraperitoneal injection Substances 0.000 description 2
- 125000003854 p-chlorophenyl group Chemical group [H]C1=C([H])C(*)=C([H])C([H])=C1Cl 0.000 description 2
- 239000008194 pharmaceutical composition Substances 0.000 description 2
- 239000000546 pharmaceutical excipient Substances 0.000 description 2
- 230000000144 pharmacologic effect Effects 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 208000011580 syndromic disease Diseases 0.000 description 2
- 230000000699 topical effect Effects 0.000 description 2
- 208000004998 Abdominal Pain Diseases 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 208000008035 Back Pain Diseases 0.000 description 1
- ZAFNJMIOTHYJRJ-UHFFFAOYSA-N Diisopropyl ether Chemical compound CC(C)OC(C)C ZAFNJMIOTHYJRJ-UHFFFAOYSA-N 0.000 description 1
- 208000007514 Herpes zoster Diseases 0.000 description 1
- GUBGYTABKSRVRQ-QKKXKWKRSA-N Lactose Natural products OC[C@H]1O[C@@H](O[C@H]2[C@H](O)[C@@H](O)C(O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@H]1O GUBGYTABKSRVRQ-QKKXKWKRSA-N 0.000 description 1
- 208000008930 Low Back Pain Diseases 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 208000019695 Migraine disease Diseases 0.000 description 1
- 241000699670 Mus sp. Species 0.000 description 1
- 206010030113 Oedema Diseases 0.000 description 1
- 241000700159 Rattus Species 0.000 description 1
- 208000025747 Rheumatic disease Diseases 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid group Chemical group C(C1=CC=CC=C1)(=O)O WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 1
- 125000000068 chlorophenyl group Chemical group 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000002458 infectious effect Effects 0.000 description 1
- 239000002085 irritant Substances 0.000 description 1
- 231100000021 irritant Toxicity 0.000 description 1
- 239000008101 lactose Substances 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 210000004400 mucous membrane Anatomy 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 239000002674 ointment Substances 0.000 description 1
- 229940124641 pain reliever Drugs 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000000552 rheumatic effect Effects 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 239000000829 suppository Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D215/00—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems
- C07D215/02—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom
- C07D215/16—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D215/38—Nitrogen atoms
- C07D215/42—Nitrogen atoms attached in position 4
- C07D215/44—Nitrogen atoms attached in position 4 with aryl radicals attached to said nitrogen atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Quinoline Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
L'invention concerne un procédé de préparation de nouveaux esters anthraniliques de formule générale: dans laquelle n est égal à 2, Y qui se trouve en position 7 ou 8 représente un atome d'halogène, un groupement trifluorométhyle, trifluorométhylthio ou trifluorométhoxy et Z qui se trouve en position quelconque sur le phényle représente un atome d'hydrogène, un atome d'halogène, un groupement alcoyle ayant de 1 à 4 atomes de carbone ou un groupement alkoxy ayant de 1 à 4 atomes de carbone, étant entendu que pour Y = Cl en position 7, Z est différent de H, ainsi que des sels d'addition de ces composés avec les acides minéraux ou organiques pharmaceutiquement acceptables, caractérisé essentiellement en ce que l'on soumet un dérivé fonctionnel d'un acide anthranilique approprié, à l'action d'un alcool approprié. Les produits obtenus par le procédé de l'invention possèdent des propriétés analgésiques et anti-inflammatoires.The invention relates to a process for the preparation of new anthranilic esters of general formula: in which n is equal to 2, Y which is in position 7 or 8 represents a halogen atom, a trifluoromethyl, trifluoromethylthio or trifluoromethoxy group and Z which is in any position on the phenyl represents a hydrogen atom, a halogen atom, an alkyl group having from 1 to 4 carbon atoms or an alkoxy group having from 1 to 4 carbon atoms, it being understood that for Y = Cl in position 7, Z is different from H, as well as addition salts of these compounds with pharmaceutically acceptable mineral or organic acids, essentially characterized in that a functional derivative of an appropriate anthranilic acid is subjected, to the action of an appropriate alcohol. The products obtained by the process of the invention have analgesic and anti-inflammatory properties.
Description
6~
La présente invention a pour objet un procédé de :~
préparation des nouveaux esters anthraniliques de formule I:
HN ~ ' (a~2) -N N -._ _ .. . . .. . ..
dans laquelle n est égal à 2, Y qui se trouve en position 7 ~.
ou 8 représente un atome d'halogène, un groupement trifluoro-méthyle, trifluorométhylthio ou trifluorométhoxy et Z qui se trouve en position quelconque sur le phényle représente un ~ .
atome d'hydrogène, un atome d'halogène, un groupement alcoyle ayant de 1 à 4 atomes de carbone ou un groupement alkoxy ayant de 1 a 4 atomes de carbone, étant entendu que pour Y = Cl en position 7, Z est différent de H, ainsi que des sels d'addition de ces composés avec les acides.
Dans la formule I le substituant Y est situé de préférence en position 8, Y représente de préférence le groupement trifluorométhyle, Z représente de préférence un atome d'halogène, notamment un atome de chlore.
Le procédé de l'invention concerne en particulier.
les composés de formule I, ainsi que leurs sels d'addition, décrits ci-dessous dans les exemples 1 et 2.
~ Les composes de.formule I, ainsi que leurs sels d'addition, possèdent des propriétés pharmacologiques ~ :
intéressantes. Il présentent notamment une activité analgéslque.
Ils présentent également une activité anti-inflammatoire.
Ils sont utilisables en thérapeutique, par exemple, dans le traitement des algies musculaires, articulaires ou ner- :~
veuses, douleurs dentaires et migraines, ainsi que des maladies . :
- 1- ~ ; ~
, .
'. : , ' : , .
ii3~
inflammatoires, notamment des affections rhumatismales, des lumbagos, des zonas et aussi a titre de traitement complemen-taire dans les etats infectieux et febriles.
Les produits dc formule I et leurs sels d'addition thérapeutiquement acceptables peuvent être employes pour pré-parer des composi-tions pharmaceutiques renfermant ces produits à titre de principe actif.
Les sels d'addition thérapeutiquement acceptables sont, par exemple, ceux formes avec les acides minéraux, tels que les acides chlorhydrique, bromhydrique, sulfurique ou phos-phorique, ou ceux formés avec les acides or~aniques, tels que les acides acetique, benzoique, maleique, fumarique, methanesul- -fonique ou paratoluène sulfonique.
Les compositions pharmaceutiques peuvent être admi-mistrées par voie parentérale, buccale ou rectale, ou par voie locale en application topique sur la peau ou les muqueuses.
A cet effet, elles peuvent être présentées sous forme de solutions ou suspensions injectables de comprimés, de capsules, de gélules, de solutés ou d'émulsions buvables, de suppositoires, de pommades, de cremes ou de poudres topiques.
Ces formes pharmaceutiques sont préparées selon les procédés usuels.
La posologie varie notamment en fonction de la voie d'administration et de l'effet thérapeutique recherché. Par exemple, chez l'adulte, elle peut varier entre 200 mg et 1,5 g de principe actif par jour. - -Le procédé de l'invention est caractérisé en ce que l'on soumet, selon les méthodes usuelles, un dérivé fonction- ; -nel de l'acide de formule II:
a~ . .
i3~6 HN - ~
~ \ / (II) C~ ~
Y ~- .
; dans laquelle Y est defini comme ci-dessus, à l'action d'un alcool de formule III:
..
. Z
HO-~CH2)n-N U _ .
- .
. .
:
dans laquelle Z et n sont définis comme ci~dessus, isole le prodult de formule I déslre et soumet ce dernier, le cas ~ ; -échéant, a l'action d'un acide pour obtenir le sel d'addition correspondant.
On prepare de préfêrence les esters de formule I par~ -transestérlficat~lon. Ce ~rocédé est caractérisé en ce que~
l'on fait réagir~un~compose~de formule IV~
UU~
(IV) CO2-alcoyle Ln erieur 30 ~ Y
.
, sur un alcool de formula III en présense d'un agent basique.
. .
L'agent basique est de preference un metal alcalin, ou ,~ , ;
.. . . , , ;. .
~ ~ 3 _ ..
~ 3~9 un hydrure de metal alcalin, tel que l'hydrure de sodium.
Les composés de formules III et IV sont décrits dans la littérature ou peuvent être obtenus selon les methodes decrites dans la littérature.
Les exemples suivants illustrent l'inven-tion sans toute-fois la limiter.
Exemp]c l: N-(8-triEluoromethyl 4-quinolyl) anthranilate de ~-r 4-(p~chlorophenyl) l-piperazinyl ~ ethyle On melange 6 g de 4-p-chlorophenyl piperazinyl ethanol anhydre, 6,92 g d'ester methylique de l'acide N-(8-trifluoromé-thyl 4-quinolyl) anthranilique et 50 cm3 de toluène, et ajoute ~ ;
150 mg d'une suspension à 50~ d'hydrure de sodium dans l'huile minérale. On porte au reflux pendantquinze heures. Après re-froidissement, on ajoute 50 cm3 d'acétone et separe par filtra-tion le precipite forme et le recristallise dans l'acetate d'ethyle.
On obtient 6,5 g de N-(8-trifluoromethyl 4-quinolyl) anthranilate de 3-~ 4-(p chlorophényl) l-pipérazinyl ~ éthyle; -~
P.F. = 183C.
~xemple 2: Dichlorhydrate de N-(8-trifluoromethyl 4-quinolyl) anthranilate de ~-~ -(p-chlorophényl) l-pipérazinyl~éthyle - - .
On ajoute une solution d'acide chlorhydrique dans le methanol a une suspension dans le méthanol du composé de l'exem-- ple l. Par addition d'ether isopropylique a la solution ainsi obtenue, le dichlorhydrate précipite; P.F. = 200C.
Exemple 3: Preparation de comprimes On a préparé des comprimes répondant a la ~ormule sui-vante:
Composé de l'exemple l .................................. 50 mg 30 Excipient q.s. pour l comprimé terminé a ................. 350 mg (Détail de l'excipient: lactose, talc, amidon, stearate de magnésium).
_ ~ _ ... .. . . . . . . . .. . . .. . . .
3~
ETUDE PHARMACOLOGIQUE1) Activite anti-inflammatoire:
Le principe du test employe est celui de D. BRANCENI, G. AZADIAN-BOULANGER, R. JEQUIER, (Arch., Int., Pharmacodyn., 1954, 152, 15).
Il consiste a administrer a des rats de 150 g environ, en une injcction unique, 1 mg de naphtoylheparamine dans une patte posterieure, de facon a provoquer la formation d'un oedème inflammatoire.
Les produits étudies sont administres par voie buccale, une heure avant l'injection irritante.
L'inflammation est appréciée par la mesure du volume de la patte immediatement, avant et deux heures après l'injec-tion irritante. L'augmentation du volume de la patte represente une mesure du degre d'inflammation.
On calcule alors la D~40, c'est-a-dire la dose de pro-duit testé qui diminue de degré d'inflammation de 40~ par rapport a celui des temoins. 6 ~
The present invention relates to a method of: ~
preparation of the new anthranilic esters of formula I:
HN ~ ' (a ~ 2) -NN -._ _ ... . ... ..
in which n is equal to 2, Y which is in position 7 ~.
or 8 represents a halogen atom, a trifluoro- group methyl, trifluoromethylthio or trifluoromethoxy and Z which found in any position on phenyl represents a ~.
hydrogen atom, halogen atom, alkyl group having 1 to 4 carbon atoms or an alkoxy group having from 1 to 4 carbon atoms, it being understood that for Y = Cl in position 7, Z is different from H, as well as addition salts of these compounds with acids.
In formula I the substituent Y is located from preferably in position 8, Y preferably represents the trifluoromethyl group, Z preferably represents a halogen atom, in particular a chlorine atom.
The method of the invention relates in particular.
the compounds of formula I, as well as their addition salts, described below in examples 1 and 2.
~ The compounds of formula I, as well as their salts addition, have pharmacological properties ~:
interesting. In particular, they exhibit analgesic activity.
They also exhibit anti-inflammatory activity.
They can be used in therapy, for example, in the treatment of muscle, joint or nervous pain: ~
dental pain and migraines, as well as illnesses . :
- 1- ~; ~
, .
'. :, ':,.
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inflammatory, including rheumatic conditions, lumbagos, zonas and also as a complementary treatment shut up in infectious and febrile states.
The products of formula I and their addition salts therapeutically acceptable can be used for pre-adorn pharmaceutical compositions containing these products as an active ingredient.
The therapeutically acceptable addition salts are, for example, those formed with mineral acids, such as hydrochloric, hydrobromic, sulfuric or phos-phoric, or those formed with gold ~ anic acids, such as acetic, benzoic, maleic, fumaric, methanesul- - acids fonique or paratoluene sulfonic.
The pharmaceutical compositions can be administered.
administered parenterally, buccally or rectally, or local topical application on the skin or mucous membranes.
For this purpose, they can be presented under form of injectable solutions or suspensions of tablets, capsules, capsules, oral fluids or emulsions, suppositories, ointments, creams or topical powders.
These pharmaceutical forms are prepared according to the methods usual.
The dosage varies in particular depending on the route administration and the therapeutic effect sought. By example, in adults, it can vary between 200 mg and 1.5 g active ingredient per day. - -The method of the invention is characterized in that one submits, according to the usual methods, a functional derivative; -nel of the acid of formula II:
a ~. .
i3 ~ 6 HN - ~
~ \ / (II) C ~ ~
Y ~ -.
; in which Y is defined as above, to the action of a alcohol of formula III:
..
. Z
HO- ~ CH2) nN U _ .
-.
. .
:
in which Z and n are defined as above, isolates the prodult of formula I deslre and submits the latter, the case ~; -if necessary, to the action of an acid to obtain the addition salt corresponding.
The esters of formula I are preferably prepared by ~ -transestérlficat ~ lon. This ~ process is characterized in that ~
we react ~ a ~ compound ~ of formula IV ~
UU ~
(IV) CO2-alkyl Inside 30 ~ Y
.
, on an alcohol of formula III in the presence of a basic agent.
. .
The basic agent is preferably an alkali metal, or , ~,;
... . ,,;. .
~ ~ 3 _ ..
~ 3 ~ 9 an alkali metal hydride, such as sodium hydride.
The compounds of formulas III and IV are described in literature or can be obtained by methods described in the literature.
The following examples illustrate the invention without any times limit it.
Example] cl: N- (8-triEluoromethyl 4-quinolyl) anthranilate from ~ -r 4- (p ~ chlorophenyl) l-piperazinyl ~ ethyle 6 g of 4-p-chlorophenyl piperazinyl ethanol are mixed anhydrous, 6.92 g of methyl ester of N- (8-trifluorome-thyl 4-quinolyl) anthranilic and 50 cm3 of toluene, and adds ~;
150 mg of a suspension of 50 ~ sodium hydride in oil mineral. It is brought to reflux for fifteen hours. After re-cooling, 50 cm3 of acetone are added and separated by filtering tion the precipitate forms and recrystallizes it from acetate of ethyl.
6.5 g of N- (8-trifluoromethyl 4-quinolyl) are obtained 3- ~ 4- anthranilate (p chlorophenyl) l-piperazinyl ~ ethyl; - ~
PF = 183C.
~ xample 2: N- (8-trifluoromethyl 4-quinolyl) dihydrochloride ~ - ~ - anthranilate (p-chlorophenyl) l-piperazinyl ~ ethyl - -.
A solution of hydrochloric acid is added to the methanol has a suspension in methanol of the compound of example - ple l. By adding isopropyl ether to the solution as well obtained, the dihydrochloride precipitates; PF = 200C.
Example 3 Preparation of Tablets We prepared tablets corresponding to the ~ ormule boasts:
Compound of example l .................................. 50 mg 30 Excipient qs for the tablet finished at ................. 350 mg (Details of excipient: lactose, talc, starch, stearate magnesium).
_ ~ _ ... ... . . . . . . ... . ... . .
3 ~
PHARMACOLOGICAL STUDY 1) Anti-inflammatory activity:
The principle of the test used is that of D. BRANCENI, G. AZADIAN-BOULANGER, R. JEQUIER, (Arch., Int., Pharmacodyn., 1954, 152, 15).
It consists in administering to rats of approximately 150 g, in a single injection, 1 mg of naphthoylheparamine in one hind leg, to cause edema to form inflammatory.
The products studied are administered orally, one hour before the irritant injection.
Inflammation is assessed by measuring the volume paw immediately, before and two hours after the injection irritating. The increase in the volume of the paw represents a measure of the degree of inflammation.
We then calculate the D ~ 40, i.e. the dose of pro-tested product which decreases the degree of inflammation by 40 ~ compared to to that of the witnesses.
2) Effet analqesi~ue:
___________ __ :
Le test employe est basé sur le fait signalé par R.
KOSTER et Coll., ~Fed., Proc., 1959, 18, 412) selon lequel l'injection intrapéritoneale d'acide acétique provoque, chez la souris, des mouvements repétés caractéristiques d'ctiremcnts et de torsions pouvant persister plus de six heures. Les analgésiques préviennent ou suppriment ce syndrome qui, de ce fait, peut être considéré comme l'extériorisation d'une douleur abdominale diffuse.
On emploie une solution d'acide acétique à 0,6% dans l'eau additionnée de 10% de gomme aragique. La dose déclenchant 30 le syndrome dans ces conditions est de 0,01 ml/g, soit 60 mg/kg d'acide acétique. Les produits étudiés sont administrés par voie buccale une demi-heure avant l'injection intrapéritonéale . , ~.. , .. . . , .. . , ,,, ,~
6~ ,r~;
d'acide acétique, les souris étant a jeun depuis la veille de l'expérience. Pour chaque dos,e et pour les temoins que comporte obligatoiremen-t chaque essai, on utilise un groupe de cl.ng animaux. I,es eti.rements sont observes et comptes pour chaque souris, puis additionnés par groupes de 5, pendant une période d'observation de quinze minutes commençant aussitôt après l'in]ection d'acide acétique.
Les resultats sont exprimes en dose active 50% (DA50).
Les resultats obtenus sur ces deux tests sont reunis 10 dans le tableau suivant: ' Composé de l'exemple n Activité anti- DA50 :, ~ A mg/kg ~ :
1 35 10 ~: ~
2 ~ 5~ 40 ,.,,.. ''.'' .
'.
',~ - ', ....
~ - 6 ~ .
.. . . : .. . . : 2) Analqesi ~ ue effect:
___________ __:
The test employed is based on the fact reported by R.
KOSTER et al., ~ Fed., Proc., 1959, 18, 412) that intraperitoneal injection of acetic acid causes, in the mouse, repeated movements characteristic of activites and twists that can persist for more than six hours. The pain relievers prevent or suppress this syndrome which this fact can be considered as the exteriorization of a diffuse abdominal pain.
A 0.6% acetic acid solution is used in water with 10% aragic gum added. The triggering dose 30 the syndrome under these conditions is 0.01 ml / g, i.e. 60 mg / kg acetic acid. The products studied are administered by oral route half an hour before intraperitoneal injection . , ~ .., ... . , ... , ,,,, ~
6 ~, r ~;
acetic acid, the mice having been fasting since the day before experience. For each back, and for the witnesses that obligatorily does each test, we use a group of cl.ng animals. I, es eti.rements are observed and accounts for each mouse, then added in groups of 5, for a fifteen-minute observation period starting immediately after in] ection of acetic acid.
The results are expressed in active dose 50% (DA50).
The results obtained on these two tests are gathered 10 in the following table: ' Composed of example n Anti-DA50 activity:, ~ At mg / kg ~:
1 35 10 ~: ~
2 ~ 5 ~ 40,. ,, .. ''. '' .
'.
', ~ -', ....
~ - 6 ~.
... . : ... . :
Claims (13)
dans laquelle n est égal à 2, Y qui se trouve en position 7 ou 8 représente un atome d'halogène, un groupement trifluorométhyle, trifluorométhylthio ou trifluorométhoxy et Z qui se trouve en position quelconque sur le phényle représente un atome d'hydrogène, un atome d'halogène, un groupement alcoyle ayant de 1 à 4 atomes de carbone ou un groupement alkoxy ayant de 1 à 4 atomes de carbone, étant entendu que pour Y = Cl en position 7, Z
est différent de H, ainsi que des sels d'addition de ces composés avec les acides minéraux ou organiques pharmaceu-tiquement acceptables caractérisé en ce que: a) l'on fait réagir un dérivé fonctionnel de l'acide de formule II:
(II) dans laquelle Y a la même signification précitée, sur un alcool de formule III:
(III) dans laquelle n et Z ont les mêmes significations précitées, b) l'on isole le produit de formule I désiré et c) l'on soumet, le cas échéant, le produit de formule I obtenu à l'action d'un acide minéral ou organique pharmaceutiquement acceptable pour obtenir le sel d'addition correspondant. 1. Process for the preparation of anthranilic esters of formula I:
in which n is equal to 2, Y which is in position 7 or 8 represents a halogen atom, a trifluoromethyl, trifluoromethylthio or trifluoromethoxy and Z which is in any position on the phenyl represents a hydrogen atom, an atom halogen, an alkyl group having 1 to 4 atoms of carbon or an alkoxy group having from 1 to 4 atoms of carbon, it being understood that for Y = Cl in position 7, Z
is different from H, as well as addition salts of these compounds with mineral or organic acids pharmaceu-tically acceptable characterized in that: a) we do react a functional derivative of the acid of formula II:
(II) in which Y has the same abovementioned meaning, on an alcohol of formula III:
(III) in which n and Z have the same abovementioned meanings, b) the desired product of formula I is isolated and c) subjecting, where appropriate, the product of formula I obtained to the action of a mineral or organic acid pharmaceutically acceptable to obtain the corresponding addition salt.
dans laquelle n est égal à 2, Y qui se trouve en position 7 ou 8 représente un atome d'halogène, un groupement trifluorométhyle, trifluorométhylthio ou trifluorométhoxy et Z qui se trouve en position quelconque sur le phényle représente un atome d'hydrogène, un atome d'halogène, un groupement alcoyle ayant de 1 à 4 atomes de carbone ou un groupement alkoxy ayant de 1 à 4 atomes de carbone, étant entendu que pour Y = Cl en position 7, Z est différent de H, ainsi que leurs sels d'addition avec les acides minéraux ou organi-ques pharmaceutiquement acceptables, chaque fois qu'ils sont obtenus par un procédé selon la revendication 1 ou ses équivalents chimiques manifestes. 9. The anthranilic esters of formula I:
in which n is equal to 2, Y which is in position 7 or 8 represents a halogen atom, a trifluoromethyl group, trifluoromethylthio or trifluoromethoxy and Z which is found in any position on the phenyl represents a hydrogen atom, a halogen atom, an alkyl group having from 1 to 4 atoms carbon or an alkoxy group having from 1 to 4 carbon atoms, it being understood that for Y = Cl at position 7, Z is different from H, as well as their addition salts with mineral or organic acids that are pharmaceutically acceptable, whenever they are obtained by a process according to claim 1 or its equivalents manifest chemicals.
éthyle, chaque fois qu'il est obtenu par un procédé selon la revendication 8 ou ses équivalents chimiques manifestes. 11. N- (8-trifluoromethyl dihydrochloride) 4-quinolyl) .beta anthranilate .- [4- (p-chbrophenyl) 1-piperazinyl]
ethyl, each time it is obtained by a process according to the claim 8 or its obvious chemical equivalents.
dans laquelle A représente un atome d'halogène, ou un groupe-ment CF3 ou SCF3, et B représente un atome d'hydrogène, un atome d'halogène ou un groupement alcoyle ayant de 1 à 4 atomes de carbone à condition que B n'est pas l'hydrogène quand A est 7-chloro, qui consiste à faire réagir un ester de l'acide de formule:
sur un alcool de formule:
dans laquelle A et B ont les significations précitées. 12. A process for the preparation of a substance of formula:
in which A represents a halogen atom, or a group-ment CF3 or SCF3, and B represents a hydrogen atom, a halogen atom or an alkyl group having 1 to 4 atoms of carbon provided that B is not hydrogen when A is 7-chloro, which consists in reacting an ester of the acid of formula:
on an alcohol of formula:
in which A and B have the abovementioned meanings.
dans laquelle A et B sont tels que définis dans la revendication 12, lorsqu'ils sont préparés par un procédé selon la revendica-tion 12. 13. A substance of formula:
in which A and B are as defined in claim 12, when prepared by a process according to the claim tion 12.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7317069A FR2228482B1 (en) | 1973-05-11 | 1973-05-11 | |
| FR7317069 | 1973-05-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1106376A true CA1106376A (en) | 1981-08-04 |
Family
ID=9119165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA199,329A Expired CA1106376A (en) | 1973-05-11 | 1974-05-08 | Process for the preparation of novel anthranilic esters |
Country Status (14)
| Country | Link |
|---|---|
| JP (1) | JPS5014688A (en) |
| AU (1) | AU6876774A (en) |
| BE (1) | BE814792A (en) |
| CA (1) | CA1106376A (en) |
| CH (1) | CH585225A5 (en) |
| DE (1) | DE2422848A1 (en) |
| ES (1) | ES425974A1 (en) |
| FR (1) | FR2228482B1 (en) |
| GB (1) | GB1472652A (en) |
| IE (1) | IE40385B1 (en) |
| IL (1) | IL44708A0 (en) |
| LU (1) | LU70024A1 (en) |
| NL (1) | NL7406229A (en) |
| ZA (1) | ZA742658B (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR7870M (en) * | 1968-11-08 | 1970-04-27 | ||
| BE754587A (en) * | 1969-08-08 | 1971-02-08 | Upjohn Co | NEW P- (TRIHALOMETHYLQUINOLYLAMINO) BENZAMIDES AND THEIR PREPARATION PROCESS |
| BE785973A (en) * | 1971-07-09 | 1973-01-08 | Roussel Uclaf | NEW 4-AMINO QUINOLEINES AND PREPARATION PROCESS |
-
1973
- 1973-05-11 FR FR7317069A patent/FR2228482B1/fr not_active Expired
-
1974
- 1974-04-24 IL IL44708A patent/IL44708A0/en unknown
- 1974-04-26 ZA ZA00742658A patent/ZA742658B/en unknown
- 1974-05-02 JP JP49048850A patent/JPS5014688A/ja active Pending
- 1974-05-04 ES ES425974A patent/ES425974A1/en not_active Expired
- 1974-05-08 CA CA199,329A patent/CA1106376A/en not_active Expired
- 1974-05-09 AU AU68767/74A patent/AU6876774A/en not_active Expired
- 1974-05-09 LU LU70024A patent/LU70024A1/xx unknown
- 1974-05-09 NL NL7406229A patent/NL7406229A/xx not_active Application Discontinuation
- 1974-05-09 BE BE144130A patent/BE814792A/en unknown
- 1974-05-10 IE IE1002/74A patent/IE40385B1/en unknown
- 1974-05-10 DE DE2422848A patent/DE2422848A1/en not_active Ceased
- 1974-05-10 CH CH646174A patent/CH585225A5/xx not_active IP Right Cessation
- 1974-05-13 GB GB2109074A patent/GB1472652A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| ZA742658B (en) | 1975-05-28 |
| NL7406229A (en) | 1974-11-13 |
| DE2422848A1 (en) | 1974-11-28 |
| AU6876774A (en) | 1975-11-13 |
| BE814792A (en) | 1974-11-12 |
| FR2228482A1 (en) | 1974-12-06 |
| CH585225A5 (en) | 1977-02-28 |
| JPS5014688A (en) | 1975-02-15 |
| GB1472652A (en) | 1977-05-04 |
| ES425974A1 (en) | 1976-07-01 |
| LU70024A1 (en) | 1974-11-28 |
| FR2228482B1 (en) | 1976-05-14 |
| IE40385L (en) | 1974-11-11 |
| IL44708A0 (en) | 1974-06-30 |
| IE40385B1 (en) | 1979-05-23 |
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