1-, 6- and 2-substituted-1-carba-2-penem-3-carboxylic acids, process for preparing the same and pharmaceutical compositions containing the same
申请人:Merck & Co., Inc.
公开号:EP0010316A1
公开(公告)日:1980-04-30
Disclosed are 1-, 6- and 2-substituted-1-carba -2-penem-3-carboxylic acids of the following structure:
wherein R1, R2, R3 and R4 are, inter alia, independently selected from the group consisting of hydrogen, alkyl, aryl, and aralkyl. Such compounds as well as their pharmaceutically acceptable salt, ester and amide derivatives are useful as antibiotics. Also disclosed are processes for the preparation of such compounds and pharmaceutical compositions comprising such compounds.