申请人:SmithKline Corporation
公开号:US04166816A1
公开(公告)日:1979-09-04
The stereospecific cycloaddition of nitrogen containing acetic acid halides or anhydrides with Schiff bases having a carbalkoxy group substituted on the methine carbon atom offers new intermediates and methods for preparing synthetic cephalosporin congeners having antibacterial activity.
含氮乙酸卤代物或酐与在甲基碳原子上具有碳酰氧基的Schiff碱的立体特异性环加成提供了新的中间体和制备具有抗菌活性的合成头孢菌素类似物的方法。