Penicillanic acid derivatives, their preparation and their pharmaceutical compositions with a penicillin or cephalosporin
申请人:BEECHAM GROUP PLC
公开号:EP0023093A1
公开(公告)日:1981-01-28
The present invention provides the compounds of the formula (I):
and pharmaceutically acceptable salts and in vivo hydrolysable esters thereof, wherein n is 0 or 2, R' is a C1-6 alkyl group optionally substituted with one, two or three fluorine, chlorine or bromine atoms, or is a di-C1-6 alkylamino group or is a group of the formula (I):
wherein X is a bond, or a -CH =CH group, or a methylene or ethylene group; R2 is a hydrogen, fluorine, bromine or chlorine atom, or is an amino, protected amino, hydroxy, protected hydroxy, C,-, alkyl, nitro, di-C1-6 alkylamino, acetamido, C1-6 alkoxy or trifluromethyl group; R is a hydrogen or chlorine atom or a C,-, alkyl or trifluoromethyl group; and R4 is a hydrogen or chlorine atom, or a C1-6 alkyl or
C1-6 alkoxy group; or R5 and R' on any two adjacent carbon atoms may together represent a buta-1, 3-dienylene moiety which is optionally substituted by a C,-, alkyl or C,-, alkoxy group. These compounds are β-lactamase inhibitors. Their use is described as is a process for their preparation.
本发明提供了式(I)化合物:
及其药学上可接受的盐和体内可水解的酯,其中 n 是 0 或 2,R' 是任选被一个、两个或三个氟原子、氯原子或溴原子取代的 C1-6 烷基,或者是二-C1-6 烷基氨基,或者是式 (I) 的基团:
其中 X 是键,或 -CH =CH 基团,或亚甲基或亚乙基;R2 是氢、氟、溴或氯原子,或氨基、受保护氨基、羟基、受保护羟基、C,-, 烷基、硝基、二-C1-6 烷基氨基、乙酰氨基、C1-6 烷氧基或三氟甲基;R 是氢或氯原子,或 C,-,烷基或三氟甲基;以及 R4 是氢或氯原子,或 C1-6 烷基或 C1-6 烷氧基;或 R5 是氢或氯原子,或 C1-6 烷基或 C1-6 烷氧基。
C1-6烷基或C1-6烷氧基;或任意两个相邻碳原子上的R5和R'可共同代表丁-1, 3-二烯分子,该分子可任选被C,-, 烷基或C,-, 烷氧基取代。这些化合物是 β-内酰胺酶抑制剂。本文介绍了它们的用途和制备方法。