| 摘要 |
The present invention relates to certain penem derivatives of the general formula I <IMAGE> I in which R represents a hydrogen atom or a carboxyl esterifying group, R1 represents certain unsubstituted and substituted aromatic and heterocyclic groups, and R2 represents a hydrogen atom, an unsubstituted or substituted alkyl or aryl group. The compound of formula I and salts thereof may be used in the treatment of bacterial infections in man and other animals. |
