申请人:Fairhurst Robin Alec
公开号:US20090240045A1
公开(公告)日:2009-09-24
A compound of formula (I) or stereoisomers or pharmaceutically acceptable salts thereof, and their preparation and use as pharmaceuticals
wherein R
1
, R
2
, R
3
, R
4
and W are as defined herein.
式(I)的化合物,或其立体异构体或药学上可接受的盐,以及它们的制备和用作药物,其中R1、R2、R3、R4和W的定义如本文所述。