| 摘要 |
6-(2-Amino-2-[4-acyloxyphenyl]acetamido)penicillanoyloxymethyl esters of beta-lactamase inhibitors containing a beta-lactam ring and a carboxy group, in which the 4-acyloxy group is a group of the formula R<2>-C(=O)-O- where R<2> is an alkyl, alkoxy, carboxyalkyl, 3-carboxycyclopentyl, 4-carboxycyclohexyl, optionally-substituted phenyl or N-substituted amino group, are useful as antibacterial agents. |
