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JPH0257541B2 - - Google Patents
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JPH0257541B2 - - Google Patents

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Publication number
JPH0257541B2
JPH0257541B2 JP56194854A JP19485481A JPH0257541B2 JP H0257541 B2 JPH0257541 B2 JP H0257541B2 JP 56194854 A JP56194854 A JP 56194854A JP 19485481 A JP19485481 A JP 19485481A JP H0257541 B2 JPH0257541 B2 JP H0257541B2
Authority
JP
Japan
Prior art keywords
diphenylethylamine
compound
organic layer
acid
under reduced
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 - Lifetime
Application number
JP56194854A
Other languages
Japanese (ja)
Other versions
JPS5896057A (en
Inventor
Shu Mita
Junichi Iwao
Masayuki Ooya
Tadashi Iso
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Santen Pharmaceutical Co Ltd
Original Assignee
Santen Pharmaceutical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Santen Pharmaceutical Co Ltd filed Critical Santen Pharmaceutical Co Ltd
Priority to JP56194854A priority Critical patent/JPS5896057A/en
Publication of JPS5896057A publication Critical patent/JPS5896057A/en
Publication of JPH0257541B2 publication Critical patent/JPH0257541B2/ja
Granted legal-status Critical Current

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  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

【発明の詳細な説明】 本発明は下記一般式〔〕で表わされる化合物
およびその塩類に関する。 〔式中、R1およびR2は水素原子を示す。R3は水
素原子またはベンジル基を示す。Zは炭素数1〜
3個の直鎖または分枝のアルキレンを示す。以下
同じ。〕 本発明化合物〔〕はカルシウム拮抗作用を有
し、狭心症などに有用な薬物である。 本発明化合物〔〕は例えば下記のA),B)
の方法で合成することができる。 一般式〔〕で示される化合物の内、R3が水
素原子である化合物を得るにはA)またはB)の
方法で得られた化合物を、液体アンモニア中ナト
リウムによる還元をするかあるいは、アンモニア
水、水酸化ナトリウムまたは塩酸などの通常用い
られる加水分解試薬を用いて加水分解する。 上記A),B)の反応式中、還元剤として
NaBH3CNを用いると好収率で目的物を得るが、
ラネーニツケルを触媒として水素化を行つてもよ
い。本発明化合物〔〕は1個またはそれ以上の
不整炭素を有するので、立体異性体が存在する
が、それらはいずれも本発明の範囲に包含され
る。本発明化合物〔〕が光学活性化合物である
場合は上記反応式の内B)方法を用いる。 上記の方法により合成した本発明化合物〔〕
は酸付加塩の形態とすることができ、酸付加塩は
無機酸もしくは有機酸を使用して常法により得る
ことができる。本発明化合物の医薬として許容さ
れる塩を形成する適当な酸の例は、塩酸、硫酸、
燐酸、乳酸、マレイン酸、フマル酸、メタンスル
ホン酸、パラトルエンスルホン酸などである。 以下に実施例を示す。 実施例 1 N―(2―ベンジルチオエチル)―1,2―ジ
フエニルエチルアミンの製造 デソキシベンゾイン(9.81g)およびS―ベン
ジルシステアミン塩酸塩(30.5g)のメタノール
(150ml)溶液にNaBH3CN(2.20g)およびモレ
キユラーシーブス3A(10g)を加え室温で1週間
撹拌する。反応液にNNaOH(80ml)を加え減圧
濃縮する。濃縮液に水(50ml)およびクロロホル
ム(300ml)を加え有機層を分取する。有機層を
飽和食塩水で洗浄後無水硫酸マグネシウムで乾燥
する。溶媒を減圧留去し得られる油状物をシリカ
ゲルカラムクロマトで精製し標記化合物12.5g
(収率72%)を得る。 IR(neat,cm-1) 1600,1495,1455 NMR(CDCl3,δ) 1.72(1H,s,−N−),2.30〜2.63(4H,
m,−SC 2C 2NH−),2.87(2H,d,J
=7.0Hz,−C 2−CH),3.50(2H,s,−
SC 2C6H5),3.77(1H,dd,J=7.0,6.0
Hz,−CH2C),6.87〜7.37(15H,m,ア
ロマチツクH) 実施例 2 N―(2―ベンジルチオエチル)―1,2―ジ
フエニルエチルアミン塩酸塩の製造 N―(2―ベンジルチオエチル)―1,2―ジ
フエニルエチルアミン(0.50g)を酢酸エチルに
溶解し、1.5N塩酸/酢酸エチル(1.0ml)を加え
析出する結晶を取し標記化合物0.40g(77%)
を得る。 融点179〜180℃ IR(KBr,cm-1) 1590,1580,1490,1450 NMR(DMSO−d6,δ) 2.60〜3.07(4H,m,−SC 2C 2NH−),
3.07〜3.43(2H,m,−C 2CH),3.67
(2H,s,−SC 2C6H5),4.13〜4.67(2H,
m,−CH2C),6.80〜7.60(15H,m,ア
ロマチツクH),9.33〜10.67(2H,br,−N
−及びCl) 実施例 3 N―(2―メルカプトエチル)―1,2―ジフ
エニルエチルアミンの製造 N―(2―ベンジルチオエチル)―1,2―ジ
フエニルエチルアミン(6.0g)をTHF(20ml)
および液体アンモニア(80ml)の混液に溶解し、
金属ナトリウム(1.0g)を少量ずつ加える。反
応終了後、液体アンモニアを留去する。残渣に、
水およびクロロホルムを加え、有機層を分取す
る。有機層を飽和食塩水で洗浄後、無水硫酸マグ
ネシウムで乾燥する。溶媒を減圧留去し標記化合
物4.6g(定量的)を得る。 IR(neat,cm-1) 1600,1490,1450,755,700 NMR(CDCl3,δ) 1.17〜2.10(2H,br,−N−及び−S),
2.27〜2.70(4H,m,−SC 2C 2NH−),
2.73〜3.07(2H,m,−C 2CH),3.78
(2H,ddd,J=7.0,6.0,2.0Hz,−CH2C
),6.87〜7.53(10H,m,アロマチツクH) 実施例 4 N―(2―メルカプトエチル)―1,2―ジフ
エニルエチルアミン塩酸塩の製造 N―(2―メルカプトエチル)―1,2―ジフ
エニルエチルアミン(0.50g)を用い実施例3と
同様に操作して標記化合物0.42g(74%)を得
る。 融点247〜250℃(分解) IR(KBr,cm-1) 1570,1500,1455,700 NMR(DMSO―d6,δ) 2.63〜3.93(7H,m,SC 2C 2N及び
−C 2CH),4.23〜4.83(1H,m,−CH2C
H),6.83〜7.73(10H,m,アロマチツク
H),9.53〜10.73(2H,br,−N−及び
Cl) 実施例 5 (1R)―N―(2―ベンジルチオエチル)―1,
2―ジフエニルエチルアミンの製造 (ベンジルチオ)アセトアルデヒド(1.7g)
および(1R)―1,2―ジフエニルエチルアミ
ン(11.8g)のメタノール―THF1:1(40ml)
溶液に5N―メタノール―塩酸(4ml)、モレキユ
ラーシーブス3A(2.0g)およびNaBH3CN(0.38
g)を加え室温で3日間撹拌する。反応液にN−
NaOHを加えアルカリ性とした後、減圧濃縮す
る。残査に酢酸エチルおよび水を加え、有機層を
分取する。有機層を飽和食塩水で洗浄後無水硫酸
マグネシウムで乾燥する。溶媒を減圧留去し残査
をシリカゲルカラムクロマトで精製し標記化合物
1.7g(50%)を得る。 実施例 6 (1R)―N―(2―メルカプトエチル)―1,
2―ジフエニルエチルアミンの製造 (1R)―N―(2―ベンジルチオエチル)―
1,2―ジフエニルエチルアミン(1.5g)を
THF(5ml)および液体アンモニア(20ml)の混
液に溶解し、金属ナトリウム(0.25g)を少量ず
つ加える。反応終了後液体アンモニアを留去し、
残査に水およびクロロホルムを加え、有機層を分
取する。有機層を飽和食塩水で洗浄後無水硫酸マ
グネシウムで乾燥する。溶媒を減圧濃縮し標記化
合物1.1g(定量的)を得る。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a compound represented by the following general formula [] and salts thereof. [In the formula, R 1 and R 2 represent hydrogen atoms. R 3 represents a hydrogen atom or a benzyl group. Z has 1 or more carbon atoms
Indicates three straight or branched alkylenes. same as below. ] The compound of the present invention [ ] has a calcium antagonistic effect and is a useful drug for angina pectoris and the like. The compounds of the present invention [] are, for example, the following A), B)
It can be synthesized by the following method. Among the compounds represented by the general formula [], in order to obtain a compound in which R 3 is a hydrogen atom, the compound obtained by method A) or B) is reduced with sodium in liquid ammonia, or with , using commonly used hydrolysis reagents such as sodium hydroxide or hydrochloric acid. In the reaction formulas of A) and B) above, as a reducing agent
When using NaBH 3 CN, the desired product can be obtained in good yield, but
Hydrogenation may be carried out using Raney nickel as a catalyst. Since the compound of the present invention [ ] has one or more asymmetric carbon atoms, stereoisomers exist, and all of them are included within the scope of the present invention. When the compound of the present invention [ ] is an optically active compound, method B) of the above reaction formula is used. Compound of the present invention synthesized by the above method []
can be in the form of an acid addition salt, which can be obtained by conventional methods using inorganic or organic acids. Examples of suitable acids for forming pharmaceutically acceptable salts of compounds of the invention include hydrochloric acid, sulfuric acid,
These include phosphoric acid, lactic acid, maleic acid, fumaric acid, methanesulfonic acid, and para-toluenesulfonic acid. Examples are shown below. Example 1 Preparation of N-(2-benzylthioethyl)-1,2-diphenylethylamine NaBH 3 CN was added to a solution of desoxybenzoin (9.81 g) and S-benzylcysteamine hydrochloride (30.5 g) in methanol (150 ml). (2.20 g) and Molecular Sieves 3A (10 g) were added and stirred at room temperature for one week. Add NNaOH (80 ml) to the reaction solution and concentrate under reduced pressure. Add water (50 ml) and chloroform (300 ml) to the concentrate and separate the organic layer. The organic layer is washed with saturated brine and dried over anhydrous magnesium sulfate. The solvent was distilled off under reduced pressure, and the resulting oil was purified using silica gel column chromatography to obtain 12.5 g of the title compound.
(yield 72%). IR (neat, cm -1 ) 1600, 1495, 1455 NMR (CDCl 3 , δ) 1.72 (1H, s, -NH -), 2.30-2.63 (4H,
m, -SC H 2 C H 2 NH-), 2.87 (2H, d, J
=7.0Hz, -CH2 - CH), 3.50(2H,s,-
SC H 2 C 6 H 5 ), 3.77 (1H, dd, J = 7.0, 6.0
Hz, -CH 2 C H ), 6.87-7.37 (15H, m, aromatic H) Example 2 Production of N-(2-benzylthioethyl)-1,2-diphenylethylamine hydrochloride N-(2-benzyl Dissolve 1,2-diphenylethylamine (0.50 g) in ethyl acetate, add 1.5N hydrochloric acid/ethyl acetate (1.0 ml), collect the precipitated crystals, and obtain 0.40 g (77%) of the title compound.
get. Melting point 179-180℃ IR (KBr, cm -1 ) 1590, 1580, 1490, 1450 NMR (DMSO-d 6 , δ) 2.60-3.07 (4H, m, -SC H 2 C H 2 NH-),
3.07 ~ 3.43 (2H, m, -CH2CH ), 3.67
(2H, s, -SC H 2 C 6 H 5 ), 4.13-4.67 (2H,
m, -CH 2 C H ), 6.80-7.60 (15H, m, aromatic H), 9.33-10.67 (2H, br, -NH
- and H Cl) Example 3 Production of N-(2-mercaptoethyl)-1,2-diphenylethylamine N-(2-benzylthioethyl)-1,2-diphenylethylamine (6.0 g) was dissolved in THF ( 20ml)
and liquid ammonia (80ml),
Add metallic sodium (1.0g) little by little. After the reaction is complete, liquid ammonia is distilled off. On the residue,
Add water and chloroform, and separate the organic layer. The organic layer is washed with saturated brine and then dried over anhydrous magnesium sulfate. The solvent was distilled off under reduced pressure to obtain 4.6 g (quantitative) of the title compound. IR (neat, cm -1 ) 1600, 1490, 1450, 755, 700 NMR (CDCl 3 , δ) 1.17-2.10 (2H, br, -NH - and -S H ),
2.27-2.70 (4H, m, -SC H 2 C H 2 NH-),
2.73-3.07 (2H, m, -CH2CH ) , 3.78
(2H, ddd, J=7.0, 6.0, 2.0Hz, -CH 2 C H
), 6.87-7.53 (10H, m, aromatic H) Example 4 Production of N-(2-mercaptoethyl)-1,2-diphenylethylamine hydrochloride N-(2-mercaptoethyl)-1,2-diphenylamine The procedure in Example 3 was repeated using enylethylamine (0.50 g) to obtain 0.42 g (74%) of the title compound. Melting point 247-250℃ (decomposition) IR (KBr, cm -1 ) 1570, 1500, 1455, 700 NMR (DMSO-d 6 , δ) 2.63-3.93 (7H, m, H SC H 2 C H 2 N and - CH2CH ), 4.23-4.83(1H, m , -CH2C
H), 6.83-7.73 (10H, m, aromatic H), 9.53-10.73 (2H, br, -NH- and H
Cl) Example 5 (1R)-N-(2-benzylthioethyl)-1,
Production of 2-diphenylethylamine (benzylthio)acetaldehyde (1.7g)
and (1R)-1,2-diphenylethylamine (11.8g) in methanol-THF1:1 (40ml)
5N-methanol-hydrochloric acid (4 ml), molecular sieves 3A (2.0 g) and NaBH 3 CN (0.38 g) were added to the solution.
g) and stirred at room temperature for 3 days. N- in the reaction solution
After making it alkaline by adding NaOH, it is concentrated under reduced pressure. Ethyl acetate and water are added to the residue, and the organic layer is separated. The organic layer is washed with saturated brine and dried over anhydrous magnesium sulfate. The solvent was distilled off under reduced pressure and the residue was purified by silica gel column chromatography to obtain the title compound.
Obtain 1.7g (50%). Example 6 (1R)-N-(2-mercaptoethyl)-1,
Production of 2-diphenylethylamine (1R)-N-(2-benzylthioethyl)-
1,2-diphenylethylamine (1.5g)
Dissolve in a mixture of THF (5 ml) and liquid ammonia (20 ml) and add sodium metal (0.25 g) little by little. After the reaction is completed, liquid ammonia is distilled off,
Water and chloroform are added to the residue, and the organic layer is separated. The organic layer is washed with saturated brine and dried over anhydrous magnesium sulfate. The solvent was concentrated under reduced pressure to obtain 1.1 g (quantitative) of the title compound.

Claims (1)

【特許請求の範囲】 1 下記一般式〔〕で表わされる化合物および
その塩類。 〔式中、R1およびR2は水素原子を示す。R3は水
素原子またはベンジル基を示す。Zは炭素数1〜
3個の直鎖または分枝のアルキレンを示す。〕
[Claims] 1. Compounds represented by the following general formula [] and salts thereof. [In the formula, R 1 and R 2 represent hydrogen atoms. R 3 represents a hydrogen atom or a benzyl group. Z has 1 or more carbon atoms
Indicates three straight or branched alkylenes. ]
JP56194854A 1981-12-02 1981-12-02 Mercaptoalkylamine Granted JPS5896057A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56194854A JPS5896057A (en) 1981-12-02 1981-12-02 Mercaptoalkylamine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56194854A JPS5896057A (en) 1981-12-02 1981-12-02 Mercaptoalkylamine

Publications (2)

Publication Number Publication Date
JPS5896057A JPS5896057A (en) 1983-06-07
JPH0257541B2 true JPH0257541B2 (en) 1990-12-05

Family

ID=16331380

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56194854A Granted JPS5896057A (en) 1981-12-02 1981-12-02 Mercaptoalkylamine

Country Status (1)

Country Link
JP (1) JPS5896057A (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5632283Y2 (en) * 1977-04-18 1981-07-31
JPS5757901Y2 (en) * 1978-12-25 1982-12-11
JPS561665U (en) * 1979-06-18 1981-01-09

Also Published As

Publication number Publication date
JPS5896057A (en) 1983-06-07

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