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    • 4. 发明申请
    • 4-BROMO-3-METHYL-5-PROPOXYTHIOPHENE-2-CARBOXYLIC ACID 2,5-DIOXO-PYRROLIDIN-1-YL ESTER, ITS REGIO-SPECIFIC SYNTHESIS AND INTERMEDIATE THERETO
    • 4-溴-3-甲基-5-丙氧基-2-羟基乙酸2,5-二氧代吡咯烷-1-酮,其特异性合成和中间体
    • WO2008121669A1
    • 2008-10-09
    • PCT/US2008/058346
    • 2008-03-27
    • SANOFI-AVENTISGELORMINI, Ann, MarieSHAY, John, Josephe, Jr.SLEDESKI, Adam, W.
    • GELORMINI, Ann, MarieSHAY, John, Josephe, Jr.SLEDESKI, Adam, W.
    • C07D409/06C07D409/12
    • C07D409/06C07D409/12
    • The present invention is directed to 4-bromo-3-methyl-5-propoxythiophene-2-carboxylic acid 2,5-dioxo-pyrrolidin-1-yl ester, and intermediate, 3-methyl-5-propoxythiophene-2-carboxylic acid 2,5-dioxo-pyrrolidin-1-yl ester, thereto. The present invention is also directed to the regio-specific synthesis of 4-bromo-3-methyl-5-propoxythiophene-2-carboxylic acid 2,5-dioxo-pyrrolidin-1-yl ester compound comprising the steps of iodinating 3-methyl-thiophene with an iodinating agent in the presence of a strong base in an non-protic polar or hydrocarbon solvent to yield 2-iodo-4-methylthiophene; Ullmann coupling the 2-iodo-4-methylthiophene with an alkali metal propoxide salt using a copper catalyst in propanol to yield 4-methyl-2-propoxythiophene; coupling the 4-methyl-2-propoxythiophene with CO2 using strong base in an non-protic polar or hydrocarbon solvent to yield 3 methyl-5-propoxy-thiophene-2-carboxylic acid; esterifying the 3 methyl-5-propoxy-thiophene-2-carboxylic acid with N hydroxysuccinimide in the presence of a coupling agent in an non-protic polar, hydrocarbon or halohydrocarbon solvent to yield 3-methyl-5-propoxythiophene-2-carboxylic acid 2,5 dioxo-pyrrolidin-1-yl ester; and brominating the 3-methyl-5-propoxythiophene-2-carboxylic acid 2,5 dioxo-pyrrolidin-1-yl ester with a brominating agent in an inert solvent to yield 4-bromo-3-methyl-5-propoxythiophene-2-carboxylic acid 2,5-dioxo-pyrrolidin-1-yl ester.
    • 本发明涉及4-溴-3-甲基-5-丙氧基噻吩-2-羧酸2,5-二氧代 - 吡咯烷-1-基酯和中间体3-甲基-5-丙氧基噻吩-2-甲酸 2,5-二氧代 - 吡咯烷-1-基酯。 本发明还涉及4-溴-3-甲基-5-丙氧基噻吩-2-羧酸2,5-二氧代 - 吡咯烷-1-基酯化合物的区域特异性合成,包括以下步骤:将3-甲基 - 噻吩与碘化剂在非质子极性或烃溶剂中在强碱存在下反应,得到2-碘-4-甲基噻吩; Ullmann使用铜催化剂在丙醇中将2-碘-4-甲基噻吩与碱金属丙醇盐偶联,得到4-甲基-2-丙氧基噻吩; 在非质子极性或烃溶剂中使用强碱将4-甲基-2-丙氧基噻吩与CO 2偶联,得到3甲基-5-丙氧基 - 噻吩-2-羧酸; 在非质子极性,烃或卤代烃溶剂中,在偶联剂存在下,用N羟基琥珀酰亚胺酯化3-甲基-5-丙氧基 - 噻吩-2-羧酸,得到3-甲基-5-丙氧基噻吩-2-羧酸 2,5-二氧代 - 吡咯烷-1-基酯; 并用溴化剂在惰性溶剂中溴化3-甲基-5-丙氧基噻吩-2-羧酸2,5二氧代 - 吡咯烷-1-基酯,得到4-溴-3-甲基-5-丙氧基噻吩-2-基酯 羧酸2,5-二氧代 - 吡咯烷-1-基酯。
    • 5. 发明申请
    • USE OF 4-BROMO-3-METHYL-5-PROPOXYTHIOPHENE-2-CARBOXYLIC ACID 2,5-DIOXO-PYRROLIDIN-1-YL ESTER FOR PREPARING THE TRYPTASE INHIBITOR [4-(5-AMINOMETHYL-2-FLUORO-PHENYL)-PIPERIDIN-1-YL]-(4-BROMO-3-METHYL-5-PROPOXY-THIOPHEN-2-YL)-METHANONE
    • 4-溴-3-甲基-5-丙氧基-2-羧酸的制备用于制备TRYPTASE抑制剂[4-(5-氨基乙基-2-氟 - 苯基)] - 的二氧杂环戊烯-2-酮 哌啶-1-基] - (4-溴-3-甲基-5-丙氧基 - 噻吩-2-基) - 甲
    • WO2008121666A1
    • 2008-10-09
    • PCT/US2008/058341
    • 2008-03-27
    • SANOFI-AVENTISGELORMINI, Ann, MarieSLEDESKI, Adam, W.SHAY, John, Joseph, Jr.
    • GELORMINI, Ann, MarieSLEDESKI, Adam, W.SHAY, John, Joseph, Jr.
    • C07D409/06
    • C07D409/06
    • This invention is directed to a five step regio-specific synthesis of 4-bromo-3-methyl-5-propoxy-thiophene-2-carboxylic acid compound of formula 16 comprising the steps of acetalating 3-methyl-thiophene-2-carbaldehyde in an alcohol solvent; iodinating the acetalated 3-methyl-thiophene-2-carbaldehyde in an non-protic polar or hydrocarbon solvent to yield the corresponding iodinated and acetalated 3-methyl-thiophene-2-carbaldehyde product; treating the iodinated and acetalated product with water to yield the corresponding 5-iodo-3-methyl-thiophene-2-carbaldehyde; oxidizing the 5-iodo-3-methyl-thiophene-2-carbaldehyde to the corresponding 5-iodo-3-methyl-thiophene-2-carboxylic acid in ketone solvent; Ullmann coupling of the 5-iodo-3-methyl-thiophene-2-carboxylic acid with alkali metal propoxide salt using a copper catalyst in propanol to yield 3-methyl-5-propoxy-thiophene-2-carboxylic acid; esterifying 3-methyl-5-propoxy-thiophene-2-carboxylic acid to yield the corresponding alkyl 3-methyl-5-propoxy-thiophene-2-carboxylate; brominating the 3-methyl-5-propoxy-thiophene-2-carboxylic acid to yield the corresponding alkyl 4-bromo-3-methyl-5-propoxy-thiophene-2-carboxylate; and basic hydrolyzing the alkyl 4-bromo-3-methyl-5-propoxy-thiophene-2-carboxylate with base to yield 4-bromo-3-methyl-5-propoxy-thiophene-2-carboxylic acid.
    • 本发明涉及式16的4-溴-3-甲基-5-丙氧基 - 噻吩-2-羧酸化合物的五步区域特异性合成,包括以下步骤:将3-甲基 - 噻吩-2-甲醛缩醛 醇溶剂; 在非质子极性或烃溶剂中碘化缩醛化的3-甲基 - 噻吩-2-甲醛,得到相应的碘化和缩醛化的3-甲基 - 噻吩-2-甲醛产物; 用水处理碘化和缩醛产物,得到相应的5-碘-3-甲基 - 噻吩-2-甲醛; 在酮溶剂中将5-碘-3-甲基 - 噻吩-2-甲醛氧化成相应的5-碘-3-甲基 - 噻吩-2-羧酸; 使用铜催化剂在丙醇中的5-碘-3-甲基 - 噻吩-2-羧酸与碱金属丙醇盐的Ullmann偶联,得到3-甲基-5-丙氧基 - 噻吩-2-羧酸; 酯化3-甲基-5-丙氧基 - 噻吩-2-羧酸,得到相应的3-甲基-5-丙氧基 - 噻吩-2-甲酸烷基酯; 溴化3-甲基-5-丙氧基 - 噻吩-2-羧酸,得到相应的4-溴-3-甲基-5-丙氧基 - 噻吩-2-羧酸烷基酯; 并用碱碱性水解4-溴-3-甲基-5-丙氧基 - 噻吩-2-羧酸烷基酯,得到4-溴-3-甲基-5-丙氧基 - 噻吩-2-羧酸。