申请人:ORCHID CHEMICALS & PHARMACEUTICALS LIMITED
公开号:US20040087786A1
公开(公告)日:2004-05-06
The present invention relates to an improved process for the preparation of 3-propenyl cephalosporin DMF solvate, more particularly, the present invention relates to an improved process for the preparation of cefprozil DMF solvate of the formula (I), which is useful for the preparation of cefprozil of the formula (XIV).
1
本发明涉及一种改进的制备3-丙烯基头孢菌素DMF溶剂结晶体的方法,更具体地,本发明涉及一种改进的制备cefprozil DMF溶剂结晶体的方法,其化学式为(I),该方法对于制备化学式为(XIV)的cefprozil非常有用。