发明公开
EP0372699A1 Process for the preparation of 4-acyloxy-2-azetidinone derivatives 失效
Verfahren zur Herstellung von 4-Acyloxy-2-azetidinone Derivate。

Process for the preparation of 4-acyloxy-2-azetidinone derivatives
摘要:
A process for producing 3-[1′-(R)-hydroxyethyl]-4-­acyloxyazetidinone from 3-[1′-(R)-hydroxyethyl]-4-alkyl (or aryl) thioazetidinone using a copper salt of aliphatic or aromatic carboxylic acid is disclosed. The process is an effective route for producing 3-[1′-(R)-hydroxyethyl]-4-acyloxyazetidinone, an intermediate for synthesizing penems or carbapenems, without using a mercury salt which can cause an environmental hazard.
信息查询
0/0