申请人:Fujisawa Pharmaceutical Co., Ltd.
公开号:US04383945A1
公开(公告)日:1983-05-17
This invention relates to novel 4-substituted-2-oxoazetidine compounds and salts thereof, which are useful intermediates in the preparation of antibiotics having the fundamental skeleton of Thienamycin, which compounds are of the formula: ##STR1## in which R.sup.1 is halogen, isocyano, hydroxy(lower)alkyl or protected hydroxy(lower)alkyl, R.sup.2 is hydrogen or lower alkyl optionally substituted by carboxy or protected carboxy, and R.sup.3 is carboxy or a protected carboxy group, or a base salt thereof.
本发明涉及新型的4-取代-2-氧代氮杂环丙烷化合物及其盐,这些化合物是制备具有Thienamycin基本骨架的抗生素的有用中间体,这些化合物的化学式为:##STR1## 其中R.sup.1是卤素,异氰基,羟基(较低)烷基或受保护的羟基(较低)烷基,R.sup.2是氢或较低烷基,可选地被羧基或受保护的羧基取代,R.sup.3是羧基或受保护的羧基基团,或其碱盐。