B-Lactam antibiotics are disclosed which have the formula (IA) or pharmaceutically acceptable salts or pharmaceutically acceptable in vivo hydrolysable esters thereof:
wherein R' is phenyl, 3-hydroxyphenyl, 4-hydroxyphenyl, 3-aminophenyl, 4-aminophenyl, or 3,4-dihydroxyphenyl, the hydroxy and amino groups being optionally protected, and R is C1-8 alkyl; and also the use thereof.
Processes for the preparation of the compounds are disclosed together with intermediates for use therein.
公开了具有式(IA)或其药学上可接受的盐或药学上可接受的体内可
水解酯的 B-内酰胺类抗生素:
其中 R'是苯基、3-羟基苯基、
4-羟基苯基、3-
氨基苯基、4-
氨基苯基或 3,4-二羟基苯基,羟基和
氨基任选被保护,R 是 C1-8 烷基;及其用途。
公开了这些化合物的制备工艺及其使用的中间体。