申请人:Takeda Chemical Industries, Ltd.
公开号:EP1211239A1
公开(公告)日:2002-06-05
As a process for preparing 2,3-dihydroazepine compounds at low cost in a simple and easy manner, there is provided a process for the preparation of compounds of the formula:
or salts thereof, characterized in that compounds of the formula:
or salts thereof are reacted with compounds of the formula:
or salts thereof to give compounds of the formula:
or salts thereof, which are then subjected to esterification and ring-closing reaction.
作为一种以简单易行的方式低成本制备 2,3-二氢氮杂卓化合物的工艺,提供了一种用于制备式:
或其盐的制备工艺,其特征在于,式:
或其盐与式:
或其盐反应,得到式:
或其盐,然后对其进行酯化和闭环反应。