申请人:Sumitomo Pharmaceuticals Co., Ltd.
公开号:US05310897A1
公开(公告)日:1994-05-10
A beta-lactam compound of the formula: ##STR1## wherein R.sub.1 and R.sub.2 are, the same or different, each a hydrogen atom or a lower alkyl group, R.sub.3.sup.0 is a hydroen atom or a lower alkyl group having a beta-configuration, R.sub.4 is a carboxyl-protecting group, X is a hydrogen atom or a protected hydroxyl group and COZ is a protected thiolcarboxyl group, which is useful as a valuable intermediate in the stereospecific production of 1-alkylcarbapenem compounds.
一种β-内酰胺化合物的化学式为:##STR1##其中R.sub.1和R.sub.2分别为相同或不同的氢原子或较低的烷基基团,R.sub.3.sup.0为氢原子或具有β-构型的较低烷基基团,R.sub.4为羧基保护基团,X为氢原子或保护羟基团,COZ为保护硫醇羧基团,该化合物在1-烷基卡巴比林类化合物的立体特异性生产中作为有价值的中间体。