发明授权
US4166816A Methods and intermediates for preparing cis-4-oxoazetidine intermediates 失效
顺式-4-氧代氮杂环丁烷中间体的制备方法和中间体

Methods and intermediates for preparing cis-4-oxoazetidine intermediates
摘要:
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.
公开/授权文献
信息查询
0/0