Clavulanic acid derivatives, their preparation and pharmaceutical compositions containing them
申请人:BEECHAM GROUP PLC
公开号:EP0008899A1
公开(公告)日:1980-03-19
The compounds of-the formula (I):
and salts and esters thereof wherein R1 is a hydrogen atom or a lower alkyl, aryl or aralkyl group, R2 and R3 are independantly hydrogen, aryl, aralkyl, lower alkyl or substituted lower alkyl, or R3 is joined to R, to form a 5- or 6- membered ring and X is S, SO or SO2; have been found to be β-lactamase inhibitors and antibacterial agents. Their preparation and use is described.
式(I)化合物及其盐和酯,其中 R1 是氢原子或低级烷基、芳基或烷基,R2 和 R3 分别是氢、芳基、烷基、低级烷基或取代低级烷基,或 R3 与 R 连接形成 5 或 6 分子环,X 是 S、SO 或 SO2;已发现它们是 β-内酰胺酶抑制剂和抗菌剂。 现介绍其制备和使用方法。