申请人:——
公开号:US20030233001A1
公开(公告)日:2003-12-18
The invention relates to a process for the manufacture of a compound of formula
1
or a salt, especially a pharmaceutically acceptable salt with a base, thereof or a lactone thereof wherein the element
represents —CH
2
—CH
2
— or —CH═CH— and R represents a cyclic radical.
本发明涉及一种制备公式1或其盐,特别是其与碱形成的药用盐或其内酯的方法,其中元素表示—CH2—CH2—或—CH═CH—,R表示一个环状基团。