Novel carbapenem compounds of the formula: ##STR1## in which R.sup.1 is carboxy or protected carboxy, R.sup.2 is hydroxy(lower)alkyl or protected hydroxy(lower)alkyl, R.sup.3 is hydrogen or lower alkyl, R.sup.4 is unsaturated bicyclic heterocyclic group which may be substituted by suitable substituent(s), R.sup.5 is hydrogen or imino-protective group, and A is lower alkylene, or pharmaceutically acceptable salts thereof. Processes for their preparation and pharmaceutical compositions for the treatment of infectious diseases are also disclosed.
化合物的新型碳青霉烯的
化学式为:##STR1## 其中R.sup.1为羧基或保护的羧基,R.sup.2为羟基(较低)烷基或保护的羟基(较低)烷基,R.sup.3为氢或较低烷基,R.sup.4为不饱和的双环杂环基团,可能被适当的取代基取代,R.sup.5为氢或亚
氨基保护基,A为较低烷基,或其药学上可接受的盐。还公开了它们的制备过程和用于治疗传染病的制药组合物。