申请人:Merck & Co., Inc.
公开号:US05808056A1
公开(公告)日:1998-09-15
The present invention relates to the process for the preparation of the substituted azetidinone having the formula: ##STR1## comprising a convergent synthesis wherein the azetidinone portion of the molecule is coupled to the lower benzodioxole portion via a base catalyzed addition to an isocyanate.
本发明涉及一种制备具有以下公式的取代氮杂环丙烷的工艺:##STR1## 包括一种收敛合成,其中分子的氮杂环丙烷部分通过碱催化加成到异氰酸酯上与下部的苯并二氧杂环相连接。