申请人:Beecham Group Limited
公开号:US04426377A1
公开(公告)日:1984-01-17
This invention provides the compounds of the formula (II): ##STR1## and salts and esters thereof, wherein R.sub.1 is H and R.sub.3 is H or an aryl, aralkyl, lower alkyl or substituted lower alkyl group or R.sub.1 and R.sub.3 are joined so that the CHR.sub.1.NH.CO.R.sub.3 moiety forms a group of the sub-formula (a): ##STR2## wherein R.sub.4 is a hydrogen atom or a NH.CO.R.sub.5 group wherein R.sub.5 is a lower alkyl, lower alkoxy lower alkyl, aryl, aralkyl, aryloxyalkyl, lower alkoxy or aryloxy group. The compounds have .beta.-lactamase inhibitory and anti-bacterial properties. The invention also provides a process for their preparation, and pharmaceutical compositions containing them.
本发明提供了式(II)的化合物:##STR1##以及其盐和酯,其中R.sub.1是H,R.sub.3是H或芳基,芳基烷基,低烷基或取代低烷基基团,或R.sub.1和R.sub.3连接在一起,使得CHR.sub.1.NH.CO.R.sub.3基团形成亚式(a)的一个群:##STR2##其中R.sub.4是氢原子或NH.CO.R.sub.5基团,其中R.sub.5是低烷基,低烷氧基低烷基,芳基,芳基烷基氧基烷基,低烷氧基或芳基氧基基团。这些化合物具有β-内酰胺酶抑制和抗菌性能。本发明还提供了它们的制备方法和含有它们的药物组成物。