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    • 3. 发明授权
    • Process for preparing a piperidine derivative
    • 哌啶衍生物的制备方法
    • US06610851B1
    • 2003-08-26
    • US09695383
    • 2000-10-25
    • Kiyoshi SugiNobushige ItayaTadashi KatsuraMasami IgiShigeya YamazakiTaro IshibashiTeiji YamaokaYoshihiro KawadaYayoi Tagami
    • Kiyoshi SugiNobushige ItayaTadashi KatsuraMasami IgiShigeya YamazakiTaro IshibashiTeiji YamaokaYoshihiro KawadaYayoi Tagami
    • C07D40512
    • C07D405/12C07D211/22C07D211/60C07D211/76
    • A piperidine derivative, which can be used as an intermediate for pharmaceuticals such as paroxetine useful as antidepressants, represented by the general formula (I): wherein R1 is hydrogen atom, benzyloxycarbonyl group or tert-butoxycarbonyl group; R2 is hydroxymethyl group, an alkylsulfonyloxymethyl group having an alkyl moiety of 1 to 2 carbon atoms, phenylsulfonyloxymethyl group which may have methyl group at the 4-position, (3,4-methylenedioxyphenyl)oxymethyl group, carboxyl group or —CO2R7 group in which R7 is an alkyl group having 1 to 5 carbon atoms, and Z is methylene group or carbonyl group, with proviso that, (A) when R1 is benzyloxycarbonyl group or tert-butoxycarbonyl group, then R2 is hydroxymethyl group, an alkylsulfonyloxymethyl group having an alkyl moiety of 1 to 2 carbon atoms, phenylsulfonyloxymethyl group which may have methyl group at the 4-position or (3,4-methylenedioxyphenyl)oxymethyl group, and Z is methylene group; or (B) when R1 is hydrogen atom and Z is carbonyl group, then R2 is carboxyl group or —CO2R7 group (R7 is as defined above); or (C) when R1 is hydrogen atom and Z is methylene group, then R2 is hydroxymethyl group.
    • 哌啶衍生物,其可以用作药物的中间体,例如用作抗抑郁药的帕罗西汀,由通式(I)表示:其中R1是氢原子,苄氧基羰基或叔丁氧基羰基; R2是羟甲基,具有1〜2个碳原子的烷基部分的烷基磺酰氧基甲基,4-位可具有甲基的苯基磺酰氧基甲基,(3,4-亚甲二氧基苯基)氧甲基,羧基或-CO 2 R 7基,其中 R7为碳原子数为1〜5的烷基,Z为亚甲基或羰基,条件是(A)当R1为苄氧羰基或叔丁氧基羰基时,则R2为羟甲基,烷基磺酰氧基甲基为 具有1至2个碳原子的烷基部分,可以在4-位具有甲基的苯基磺酰氧基甲基或(3,4-亚甲二氧基苯基)氧基甲基,Z是亚甲基; 或(B)当R 1为氢原子且Z为羰基时,则R 2为羧基或-CO 2 R 7基(R 7如上所定义); 或(C)当R 1为氢原子且Z为亚甲基时,则R 2为羟甲基。
    • 4. 发明授权
    • Piperidine derivative and process for preparing the same
    • 哌啶衍生物及其制备方法
    • US06476227B1
    • 2002-11-05
    • US09550175
    • 2000-04-14
    • Kiyoshi SugiNobushige ItayaTadashi KatsuraMasami IgiShigeya YamazakiTaro IshibashiTeiji YamaokaYoshihiro KawadaYayoi Tagami
    • Kiyoshi SugiNobushige ItayaTadashi KatsuraMasami IgiShigeya YamazakiTaro IshibashiTeiji YamaokaYoshihiro KawadaYayoi Tagami
    • C07D21140
    • C07D405/12C07D211/22C07D211/60C07D211/76
    • A piperidine derivative, which can be used as an intermediate for pharmaceuticals such as paroxetine useful as antidepressants, represented by the general formula (I): wherein R1 is hydrogen atom, benzyloxycarbonyl group or tert-butoxycarbonyl group; R2 is hydroxymethyl group, an alkylsulfonyloxymethyl group having an alkyl moiety of 1 to 2 carbon atoms, phenylsulfonyloxymethyl group which may have methyl group at the 4-position, (3,4-methylenedioxyphenyl)oxymethyl group, carboxyl group or —CO2R7 group in which R7 is an alkyl group having 1 to 5 carbon atoms, and Z is methylene group or carbonyl group, with proviso that, (A) when R1 is benzyloxycarbonyl group or tert-butoxycarbonyl group, then R2 is hydroxymethyl group, an alkylsulfonyloxymethyl group having an alkyl moiety of 1 to 2 carbon atoms, phenylsulfonyloxymethyl group which may have methyl group at the 4-position or (3,4-methylenedioxyphenyl)oxymethyl group, and Z is methylene group; or (B) when R1 is hydrogen atom and Z is carbonyl group, then R2 is carboxyl group or —CO2R7 group (R7 is as defined above); or (C) when R1 is hydrogen atom and Z is methylene group, then R2 is hydroxymethyl group.
    • 哌啶衍生物,其可以用作药物的中间体,例如用作抗抑郁药的帕罗西汀,由通式(I)表示:其中R1是氢原子,苄氧基羰基或叔丁氧基羰基; R2是羟甲基,具有1〜2个碳原子的烷基部分的烷基磺酰氧基甲基,4-位可具有甲基的苯基磺酰氧基甲基,(3,4-亚甲二氧基苯基)氧甲基,羧基或-CO 2 R 7基,其中 R7为碳原子数为1〜5的烷基,Z为亚甲基或羰基,条件是(A)当R1为苄氧羰基或叔丁氧基羰基时,则R2为羟甲基,烷基磺酰氧基甲基为 具有1至2个碳原子的烷基部分,可以在4-位具有甲基的苯基磺酰氧基甲基或(3,4-亚甲二氧基苯基)氧基甲基,Z是亚甲基; 或(B)当R 1为氢原子且Z为羰基时,则R 2为羧基或-CO 2 R 7基(R 7如上所定义); 或(C)当R 1为氢原子且Z为亚甲基时,则R 2为羟甲基。
    • 8. 发明授权
    • Process for preparing 4'-methyl-2-cyanobiphenyl
    • 制备4'-甲基-2-氰基联苯的方法
    • US5892094A
    • 1999-04-06
    • US996341
    • 1997-12-22
    • Tadashi KatsuraHiroshi ShirataniKiyoshi SugiNobushige Itaya
    • Tadashi KatsuraHiroshi ShirataniKiyoshi SugiNobushige Itaya
    • C07C253/30C07C255/50C07C255/00
    • C07C253/30
    • Process for preparing 4'-methyl-2-cyanobiphenyl, comprising, catalytically hydrogenating at least one brominated cyanobiphenyl compound selected from 4'-dibromomethyl-2-cyanobiphenyl and 4'-bromomethyl-2-cyanobiphenyl; and process for regenerating 4'-methyl-2-cyanobiphenyl, comprising, catalytically hydrogenating at least one brominated cyanobiphenyl compound selected from 4'-dibromomethyl-2-cyanobiphenyl and 4'-bromomethyl-2-cyanobiphenyl, contained in a filtrate prepared by brominating 4'-methyl-2-cyanobiphenyl in a solvent; crystallizing 4'-bromomethyl-2-cyanobiphenyl from the resulting reaction mixture; and removing the resulting crystals from the reaction mixture by filtration. 4'-Methyl-2-cyanobiphenyl can be used as starting materials for 4'-bromomethyl-2-cyanobiphenyl.
    • 制备4'-甲基-2-氰基联苯的方法,包括催化氢化至少一种选自4'-二溴甲基-2-氰基联苯和4'-溴甲基-2-氰基联苯的溴代氰基联苯化合物; 以及用于再生4'-甲基-2-氰基联苯的方法,包括催化氢化选自4-溴 - 二溴甲基-2-氰基联苯和4'-溴甲基-2-氰基联苯中的至少一种溴化氰基联苯化合物,其包含在通过溴化制备的滤液中 4'-甲基-2-氰基联苯; 从所得反应混合物中结晶出4'-溴甲基-2-氰基联苯; 并通过过滤从反应混合物中除去所得晶体。 4'-甲基-2-氰基联苯可用作4'-溴甲基-2-氰基联苯的原料。