申请人:——
公开号:US20030004208A1
公开(公告)日:2003-01-02
The present invention provides a process for producing optically active 3-hydroxy-4-methoxypyrrolidine, which is an intermediate for synthesizing a quinuclidine derivative useful as a squalene synthetase inhibitor, a salt thereof, or a hydrate thereof by subjecting a pyrrolidine derivative represented by the following formula (1-4):
1
wherein R
3a
and R
3b
are different and each of R
3a
and R
3b
represents a hydrogen atom or a methyl group, to optical division purification by using an optically active dibenzoyltartaric acid derivative or the like.
本发明提供了一种用于生产光学活性的3-羟基-4-甲氧基吡咯烷的方法,这是一种合成作为角鲨烯合酶抑制剂有用的喹努啉衍生物的中间体,其盐类,或者其水合物,通过使用光学活性的二苯甲酰酒石酸衍生物等,对以下式子(1-4)所表示的吡咯烷衍生物进行光学分离纯化:
1
式中,R
3a
和R
3b
不同,R
3a
和R
3b
各自代表一个氢原子或甲基基团。