Synthesis of azetidinones,申请号US19890370520-传众专利搜索

Synthesis of azetidinones

申请公布号：US4948885(A)

申请号：US19890370520

申请日期：1989.06.23

申请公布日期：1990.08.14

申请人：

SCHERING-PLOUGH CORP.

发明人：HOU, DONALD;WONG, YEE-SHING;GALA, DINESH;STEINMAN, MARTIN

分类号：C07D205/09;C07D499/88;C07F7/18

主分类号：C07D205/09

摘要：There is disclosed a compound represented by the formula <IMAGE> wherein each P is hydrogen or a hydroxy protecting group and R and R' are each the same and are hydrogen, <IMAGE> wherein R'' is lower alkyl and R''' is a carboxy protecting group. The compounds are useful as intermediates for preparing penems.