3-Pyrrolidinylthio-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid compounds and processes for the preparation thereof
申请人:FUJISAWA PHARMACEUTICAL CO., LTD.
公开号:EP0272456A1
公开(公告)日:1988-06-29
A compound of the formula :
in which R1 is carboxy or protected carboxy,
R2 is hydroxy(lower)alkyl or protected hydroxy(lower)alkyl,
R3 is hydrogen or lower alkyl,
R4 is protected or unprotected ureido(lower)alkyl,
R5 is hydrogen, lower alkanimidoyl or imino-protective group, and
A is lower alkylene, and pharmaceutically acceptable salts thereof, processes or their preparation and pharmaceutical compositions comprising them. The invention also relates to intermediate compounds of the formula
式.的化合物
其中 R1 为羧基或受保护的羧基、
R2 是羟基(低级)烷基或受保护的羟基(低级)烷基
R3 是氢或低级烷基
R4 是受保护或未受保护的脲基(低级)烷基、
R5 是氢、低级烷酰基或亚氨基保护基团,以及
A 是低级亚烷基,及其药学上可接受的盐、制备工艺或包含它们的药物组合物。本发明还涉及式中的中间体化合物