Process for preparing indoline-2-carboxylic acids via
alpha-hydroxy-2-nitrobenzenepropanoic acid

    公开(公告)号:US4585879A

    公开(公告)日:1986-04-29

    申请号:US700371

    申请日:1985-02-11

    IPC分类号: C07D209/42

    CPC分类号: C07D209/42

    摘要: Disclosed herein is a process for obtaining indoline-2-carboxylic acid (or derivatives thereof) comprising the following steps: (a) reducing .alpha.-oxo-2-nitrobenzenepropanoic acid to .alpha.-hydroxy-2-nitrobenzenepropanoic acid, (b) replacing the hydroxyl group of the latter with a chlorine atom utilizing a selected Vilsmeier chlorinating reagent at temperatures of at least 20.degree. C., (c) reducing the nitro group of the resulting .alpha.-chloro-2-nitrobenzenepropanoic acid to obtain .alpha.-chloro-2-aminobenzenepropanoic acid, and (d) cyclizing the latter in aqueous base to form the desired indoline-2-carboxylic acid. Alternately, steps (c) and (d) may be combined in a one pot step by using, for example, a Raney nickel-hydrazine reducing medium.

    Process for the asymmetric synthesis of chiral
.alpha.-hydroxy-2-nitrobenzenepropanoic acid
    2.
    发明授权
    Process for the asymmetric synthesis of chiral .alpha.-hydroxy-2-nitrobenzenepropanoic acid 失效
    手性α-羟基-2-硝基苯丙酸的不对称合成方法

    公开(公告)号:US4727183A

    公开(公告)日:1988-02-23

    申请号:US925430

    申请日:1986-10-31

    IPC分类号: C07D209/42 C07C99/00

    CPC分类号: C07D209/42

    摘要: Disclosed herein is a process for producing an asymmetric indoline-2-carboxylic acid of the structural Formula: ##STR1## wherein X is hydrogen, bromine, chlorine, C.sub.1-4 alkyl or C.sub.1-4 alkoxy, which comprises:(a) assymetrically reducing an o-nitrophenylpyruvic acid III by contacting the acid III with a reducing complex formed from (R)-proline or (S)-proline, respectively, and sodium borohydride in an inert solvent to form, respectively, an (S) or (R)-.alpha.-hydroxy-2-nitrobenzenepropanoic acid IV;(b) reacting, respectively, said (S) or (R)-.alpha.-hydroxy-2-nitrobenzenepropanoic acid III with a Vilsmeier chlorinating reagent in which the chlorinating agent thereof is selected from a group consisting of thionyl chloride, oxalyl chloride, phosphorus oxychloride, phosphorus pentachloride and sulfuryl chloride and the amide thereof is selected from a group consisting of dimethylformamide, diethylformamide, dimethylacetamide and diethylacetamide, said reaction being run at temperatures of at least 20.degree. C., in order to obtain, respectively, and (R) or (S)-.alpha.-chloro-2-nitrobenzenepropanoic acid IV;(c) reducing the nitro group of said (R) or (S)-.alpha.-chloro-2-nitrobenzenepropanoic acid (V) to an amino group; and(d) cyclizing the resulting (R) or (S)-.alpha.-chloro-2-aminobenzenepropanoic acid in aqueous base.

    摘要翻译: 本文公开了一种制备结构式:其中X是氢,溴,氯,C 1-4烷基或C 1-4烷氧基的结构式的不对称二氢吲哚-2-羧酸的方法,其包括: (a)通过使酸III与由(R) - 脯氨酸或(S) - 脯氨酸分别形成的还原络合物和硼氢化钠在惰性溶剂中分别形成的(III)化合物分别对( - S)或(R)-α-羟基-2-硝基苯丙酸IV; (b)分别使所述(S)或(R)-α-羟基-2-硝基苯丙酸III与Vilsmeier氯化试剂反应,其中氯化剂选自亚硫酰氯,草酰氯,磷 三氯氧化物,五氯化磷和磺酰氯,其酰胺选自二甲基甲酰胺,二乙基甲酰胺,二甲基乙酰胺和二乙基乙酰胺,所述反应在至少20℃的温度下进行,以分别得到(R )或(S)-α-氯-2-硝基苯丙酸IV; (c)将所述(R)或(S)-α-氯-2-硝基苯丙酸(V)的硝基还原成氨基; 和(d)使得到的(R)或(S)-α-氯-2-氨基苯丙酸在碱性水溶液中环化。

    Process for preparing indoline-2-carboxylic acids via
.alpha.-hydroxy-2-nitrobenzenepropanoic acid
    3.
    发明授权
    Process for preparing indoline-2-carboxylic acids via .alpha.-hydroxy-2-nitrobenzenepropanoic acid 失效
    通过α-羟基-2-硝基苯丙酸制备二氢吲哚-2-羧酸的方法

    公开(公告)号:US4645857A

    公开(公告)日:1987-02-24

    申请号:US829674

    申请日:1986-02-14

    IPC分类号: C07D209/42 C07C101/447

    CPC分类号: C07D209/42

    摘要: Disclosed herein is a process for obtaining indoline-2-carboxylic acid (or derivaties thereof) comprising the following step: (a) reducing .alpha.-oxo-2-nitrobenzenepropanoic acid to .alpha.-hydroxy-2-nitrobenzenepropanoic acid, (b) replacing the hydroxyl group of the latter with a chlorine atom utilizing a selected Vilsmeier chlorinating reagent at temperatures of at least 20.degree. C., (c) reducing the nitro group of the resulting .alpha.-chloro-2-nitrobenzenepropanoic acid to obtain .alpha.-chloro-2-aminobenzenepropanoic acid, and (d) cyclizing the latter in aqueous base to form the desired indoline-2-carboxylic acid. Alternately, steps (c) and (d) may be combined in a one pot step by using, for example, a Raney nickel-hydrazine reducing medium.

    摘要翻译: 本文公开了一种获得二氢吲哚-2-羧酸(或其衍生物)的方法,包括以下步骤:(a)将α-氧代-2-硝基苯丙酸还原为α-羟基-2-硝基苯丙酸,(b)将 使用选定的Vilsmeier氯化试剂,后者的羟基与氯原子在至少20℃的温度下反应,(c)还原得到的α-氯-2-硝基苯丙酸的硝基,得到α-氯-2 - 氨基苯丙酸,和(d)将其在碱水溶液中环化形成所需的二氢吲哚-2-羧酸。 或者,步骤(c)和(d)可以通过使用例如阮内镍 - 肼还原介质在一锅步骤中组合。

    Process for the asymmetric synthesis of chiral indoline-2-carboxylic
acids
    4.
    发明授权
    Process for the asymmetric synthesis of chiral indoline-2-carboxylic acids 失效
    手性二氢吲哚-2-羧酸的不对称合成方法

    公开(公告)号:US4614806A

    公开(公告)日:1986-09-30

    申请号:US700379

    申请日:1985-02-11

    IPC分类号: C07D209/42

    CPC分类号: C07D209/42

    摘要: Disclosed herein is a process for producing an asymmetric indoline-2-carboxylic acid of the structural Formula: ##STR1## wherein X is hydrogen, bromine, chlorine, C.sub.1-4 alkyl or C.sub.1-4 alkoxy, which comprises:(a) assymetrically reducing an o-nitrophenylpyruvic acid III by contacting the acid III with a reducing complex formed from (R)-proline or (S)-proline, respectively, and sodium borohydride in an inert solvent to form, respectively, an (S) or (R)-.alpha.-hydroxy-2-nitrobenzenepropanoic acid IV;(b) reacting, respectively, said (S) or (R)-.alpha.-hydroxy-2-nitrobenzenepropanoic acid III with a Vilsmeier chlorinating reagent in which the chlorinating agent thereof is selected from a group consisting of thionyl chloride, oxalyl chloride, phosphorus oxychloride, phosphorus pentachloride and sulfuryl chloride and the amide thereof is selected from a group consisting of dimethylformamide, diethylformamide, dimethylacetamide and diethylacetamide, said reaction being run at temperatures of at least 20.degree. C., in order to obtain, respectively, and (R) or (S)-.alpha.-chloro-2-nitrobenzenepropanoic acid IV;(c) reducing the nitro group of said (R) or (S)-.alpha.-chloro-2-nitrobenzenepropanoic acid (V) to an amino group; and(d) cyclizing the resulting (R) or (S)-.alpha.-chloro-2-aminobenzenepropanoic acid in aqueous base.

    摘要翻译: 本文公开了一种制备结构式:其中X是氢,溴,氯,C 1-4烷基或C 1-4烷氧基的结构式的不对称二氢吲哚-2-羧酸的方法,其包括: (a)通过使酸III与由(R) - 脯氨酸或(S) - 脯氨酸分别形成的还原络合物和硼氢化钠在惰性溶剂中分别形成的(III)化合物分别对( - S)或(R)-α-羟基-2-硝基苯丙酸IV; (b)分别使所述(S)或(R)-α-羟基-2-硝基苯丙酸III与Vilsmeier氯化试剂反应,其中氯化剂选自亚硫酰氯,草酰氯,磷 三氯氧化物,五氯化磷和磺酰氯,其酰胺选自二甲基甲酰胺,二乙基甲酰胺,二甲基乙酰胺和二乙基乙酰胺,所述反应在至少20℃的温度下进行,以分别得到(R )或(S)-α-氯-2-硝基苯丙酸IV; (c)将所述(R)或(S)-α-氯-2-硝基苯丙酸(V)的硝基还原成氨基; 和(d)使得到的(R)或(S)-α-氯-2-氨基苯丙酸在碱性水溶液中环化。

    Process for preparing indoline-2-carboxylic acids via
alpha-hydroxy-2-nitrobenzenepropanoic acid
    5.
    发明授权
    Process for preparing indoline-2-carboxylic acids via alpha-hydroxy-2-nitrobenzenepropanoic acid 失效
    通过α-羟基-2-硝基苯丙酸制备二氢吲哚-2-羧酸的方法

    公开(公告)号:US4785118A

    公开(公告)日:1988-11-15

    申请号:US925573

    申请日:1986-10-31

    IPC分类号: C07D209/42

    CPC分类号: C07D209/42

    摘要: Disclosed herein is a process for obtaining indoline-2-carboxylic acid (or derivatives thereof) comprising the following steps: (a) reducing .alpha.-oxo-2-nitrobenzenepropanoic acid to .alpha.-hydroxy-2-nitrobenzenepropanoic acid, (b) replacing the hydroxyl group of the latter with a chlorine atom utilizing a selected Vilsmeier chlorinating reagent at temperatures of at least 20.degree. C., (c) reducing the nitro group of the resulting .alpha.-chloro-2-nitrobenzenepropanoic acid to obtain .alpha.-chloro-2-aminobenzenepropanoic acid, and (d) cyclizing the latter in aqueous base to form the desired indoline-2-carboxylic acid. Alternately, steps (c) and (d) may be combined in a one pot step by using, for example, a Raney nickel-hydrazine reducing medium.

    摘要翻译: 本文公开了一种获得二氢吲哚-2-羧酸(或其衍生物)的方法,包括以下步骤:(a)将α-氧代-2-硝基苯丙酸还原为α-羟基-2-硝基苯丙酸,(b)将 使用选定的Vilsmeier氯化试剂,后者的羟基与氯原子在至少20℃的温度下反应,(c)还原得到的α-氯-2-硝基苯丙酸的硝基,得到α-氯-2 - 氨基苯丙酸,和(d)将其在碱水溶液中环化形成所需的二氢吲哚-2-羧酸。 或者,步骤(c)和(d)可以通过使用例如阮内镍 - 肼还原介质在一锅步骤中组合。

    Process for the asymmetric synthesis of chiral indoline-2-carboxylic
acids
    6.
    发明授权
    Process for the asymmetric synthesis of chiral indoline-2-carboxylic acids 失效
    手性二氢吲哚-2-羧酸的不对称合成方法

    公开(公告)号:US4644081A

    公开(公告)日:1987-02-17

    申请号:US829662

    申请日:1986-02-14

    IPC分类号: C07D209/42 C07C101/447

    CPC分类号: C07D209/42

    摘要: Disclosed herein is a process for producing an asymmetric indoline-2-carboxylic acid of the structural Formula: ##STR1## wherein X is hydrogen, bromine, chlorine, C.sub.1-4 alkyl or C.sub.1-4 alkoxy, which comprises:(a) assymetrically reducing an o-nitrophenylpyruvic acid III by contacting the acid III with a reducing complex formed from (R)-proline or (S)-proline, respectively, and sodium borohydride in an inert solvent to form, respectively, an (S) or (R)-.alpha.-hydroxy-2-nitrobenzenepropanoic acid IV;(b) reacting, respectively, said (S) or (R)-.alpha.-hydroxy-2-nitrobenzenepropanoic acid III with a Vilsmeier chlorinating reagent in which the chlorinating agent thereof is selected from a group consisting of thionyl chloride, oxalyl chloride, phosphorus oxychloride, phosphorus pentachloride and sulfuryl chloride and the amide thereof is selected from a group consisting of dimethylformamide, diethylformamide, dimethylacetamide and diethylacetamide, said reaction being run at temperatures of at least 20.degree. C., in order to obtain, respectively, and (R) or (S)-.alpha.-chloro-2-nitrobenzenepropanoic acid IV;(c) reducing the nitro group of said (R) or (S)-.alpha.-chloro-2-nitrobenzenepropanoic acid (V) to an amino group; and(d) cyclizing the resulting (R) or (S)-.alpha.-chloro-2-aminobenzenepropanoic acid in aqueous base.

    摘要翻译: 本文公开了一种制备结构式:其中X是氢,溴,氯,C 1-4烷基或C 1-4烷氧基的不对称二氢吲哚-2-羧酸的方法,其包括:(a)按比例减少 通过使酸III与由(R) - 脯氨酸或(S) - 脯氨酸分别形成的还原络合物和硼氢化钠在惰性溶剂中分别与(S)或(R(R))形成的邻硝基苯基丙酮酸III反应, )-α-羟基-2-硝基苯丙酸IV; (b)分别使所述(S)或(R)-α-羟基-2-硝基苯丙酸III与Vilsmeier氯化试剂反应,其中氯化剂选自亚硫酰氯,草酰氯,磷 三氯氧化物,五氯化磷和磺酰氯,其酰胺选自二甲基甲酰胺,二乙基甲酰胺,二甲基乙酰胺和二乙基乙酰胺,所述反应在至少20℃的温度下进行,以分别得到(R )或(S)-α-氯-2-硝基苯丙酸IV; (c)将所述(R)或(S)-α-氯-2-硝基苯丙酸(V)的硝基还原成氨基; 和(d)使得到的(R)或(S)-α-氯-2-氨基苯丙酸在碱性水溶液中环化。

    2,3,4,5-tetrahyd
ro-1H-[1,2,5]triazocino(1,2-a)[1,2,4]benzotriazin-7(8H)-ones, thiones
and derivatives

    公开(公告)号:US4935515A

    公开(公告)日:1990-06-19

    申请号:US432245

    申请日:1989-11-06

    IPC分类号: C07D487/04

    CPC分类号: C07D487/04

    摘要: Disclosed herein are novel 1,2,3,4,5,6-hexahydro[1,3,6]triazocino[1,2-a]benzimidazole of Formulas I and II: ##STR1## wherein R.sup.1 may be phenyl, m- or p-nitrophenyl, m- or p-methylsulfonylaminophenyl, napthtyl, naphthyl mono-substituted by nitro or methylsulfonylamino, benzofurazanyl, 2-pyrimidinyl, 2- or 4-pyridinyl, 2- or 4-naphthyridinyl, pyrazinyl, isoquinolinyl, or quinolinyl;R.sup.2 may be hydrogen; C.sub.1 -C.sub.8 alkyl; phenyl(C.sub.1 -C.sub.4)alkyl or substituted-phenyl(C.sub.1 -C.sub.4)alkyl, in which phenyl may have one to three substituents selected from C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, fluorine, chlorine or bromine; phenyl or substituted-phenyl in which the phenyl substituents are the same as for substituted-phenyl (C.sub.1 -C.sub.4)alkyl; 2- or 4-pyrimidinyl; pyrazinyl; imidazolyl; C.sub.1 -C.sub.4 alkanoyl; halo or dihalo-(C.sub.1 -C.sub.4)alkanoyl, in which halo is fluoro or chloro; benzoyl or benzoyl substituted on the phenyl ring by one or two C.sub.1 -C.sub.4 alkyl groups; C.sub.1 -C.sub.4 alkanoyloxy; C.sub.1 -C.sub.4 alkylamino(C.sub.1 -C.sub.4 alkanoyl; C.sub.1 -C.sub.4 alkyloxycarbonyl; C.sub.1 -C.sub.4 alkylaminocarbonyl; phenylaminocarbonyl in which phenyl may have one to three C.sub.1 -C.sub.4 alkyl groups; phenyloxy or naphthyloxy-(C.sub.1 -C.sub.4)alkyl in which the phenyl or naphthyl ring may be substituted by one to three C.sub.1 -C.sub.4 alkyl groups; C.sub.1 -C.sub.4 alkylsulfonyl; (C.sub.1 -C.sub.4)alkyl- or N-di-(C.sub.1 -C.sub.4 alkyl)carboxamido(C.sub.1 -C.sub.4)alkyl; N-phenyl or substituted phenyl-carboxamido-(C.sub.1 -C.sub.4)alkyl in which phenyl may be substituted as above for C.sub.1 -C.sub.4 alkyl-substituted phenyl; cyano; amidino in which each N atom is substituted by a C.sub.1 -C.sub.4 alkyl group; and C.sub.1 -C.sub.4 alkylguanidino; andR.sup.3 and R.sup.4 are, independently, selected from hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, fluorine and chlorine, or acid addition salts thereof. Compounds of formulas I and II having certain values of R.sup.2 are antiarrhythmic or antiischaemic agents. The remaining values of R.sup.2 provide intermediate compounds of formulas I and II.Also disclosed herein a novel tetrahydro-3-substituted-7-substituted-1H[1,2,5]triazepino[1,2-a][1,2,4]benzotriazines, wherein the 7 substituent may be --SMe, --Cl or Br and the 3 substituent is the same as R.sup.2 in formulas I and II above. These compounds also serve as intermediates for the production of the antiarrhythmic agents for formula II above.

    N-substituted-hexahydro-1,2,5-triazepines
    9.
    发明授权
    N-substituted-hexahydro-1,2,5-triazepines 失效
    N-取代 - 六氢-1,2,5-三氮杂

    公开(公告)号:US4801706A

    公开(公告)日:1989-01-31

    申请号:US187187

    申请日:1988-04-28

    IPC分类号: C07D255/02 A61K31/55

    CPC分类号: C07D255/02 Y02P20/55

    摘要: Disclosed herein are N-substituted-hexahydro-1,2,5-triazepines of formula I, which is ##STR1## or a pharmaceutically acceptable acid addition salt thereof, wherein R.sup.4 and R.sup.5 are independently hydrogen or C.sub.1 -C.sub.4 alkyl;R.sup.1 is (R.sup.6).sub.2 --CH--(CH.sub.2).sub.n -- in which n is 0, 1, 2 or 3 and R.sup.6 is p-fluoro, chloro or methoxyphenyl; andR.sup.3 is hydrogen and R.sup.2 is benzoyl, 2,6-dimethyl or diethylbenzoyl, 2,6-dichlorobenzoyl, N-methyl, ethyl or propylcarboxamido, N-phenylcarboxamido, N-2,6-dimethyl or diethylphenylcarboxamido, N-2,6-dichlorophenylcarboxamido, N-methyl, ethyl or propylacetamido, N-phenylacetamido, N-2,6-dimethyl or diethylphenylacetamido, or N-2,6-dichlorophenylacetamido orR.sup.2 and R.sup.3 are the same and are N-methyl, ethyl or propylcarboxamido, benzoyl, 2,6-dimethyl or diethlbenzoyl, 2,6-dichlorobenzoyl, benzyl, 2,6-dimethyl or diethlbenzoyl, 2,6-dichlorobenzoyl, or a removable amino protective group. Also disclosed are N-substituted-hexahydro-1,2,5-triazepines of formula II in which R.sup.1 of formula I is replaced by R.sup.7 which is C.sub.1 -C.sub.4 alkyl, and R.sup.2 and R.sup.3 of formula I are replaced by R.sup.8 and R.sup.9 which are, respectively, N-2,6-dimethyl, diethyl or dichlorophenylcarboxamido or N-2,6-dimethyl, diethyl or dichlorophenylacetamido and hydrogen. The compounds of the invention have antiarrhythmic properties or are intermediates for the preparation thereof.

    摘要翻译: 本文公开了式I的N-取代 - 六氢-1,2,5-三氮杂,其为I或其药学上可接受的酸加成盐,其中R 4和R 5独立地为氢或C 1 -C 4烷基; R1是(R6)2-CH-(CH2)n-,其中n是0,1,2或3,R6是对氟,氯或甲氧基苯基; 并且R 3是氢,R 2是苯甲酰基,2,6-二甲基或二乙基苯甲酰基,2,6-二氯苯甲酰基,N-甲基,乙基或丙基甲酰胺基,N-苯基甲酰胺基,N-2,6-二甲基或二乙基苯基甲酰胺基,N-2,6 乙基或丙基乙酰氨基,N-苯基乙酰胺基,N-2,6-二甲基或二乙基苯基乙酰胺基,或N-2,6-二氯苯乙酰氨基或R2和R3相同,为N-甲基,乙基或丙基甲酰胺基, 苯甲酰基,2,6-二甲基或二乙基苯甲酰基,2,6-二氯苯甲酰基,苄基,2,6-二甲基或二乙基苯甲酰基,2,6-二氯苯甲酰或可除去的氨基保护基。 还公开了式II的N-取代 - 六氢-1,2,5-三氮杂,其中式I的R 1被作为C 1 -C 4烷基的R 7代替,式I的R 2和R 3被R 8和R 9取代, 分别为N-2,6-二甲基,二乙基或二氯苯基甲酰胺基或N-2,6-二甲基,二乙基或二氯苯乙酰氨基和氢。 本发明的化合物具有抗心律失常性质或者是其制备的中间体。