申请人:Brown S. David
公开号:US20090247559A1
公开(公告)日:2009-10-01
A compound according to formula I:
or a pharmaceutically acceptable salt thereof; wherein R
1
, R
2
, R
3a
, R
3b
, R
3c
and R
3d
are as defined in the specification, pharmaceutical compositions thereof, and methods of use thereof.
公式I所示的化合物或其药学上可接受的盐;其中R1、R2、R3a、R3b、R3c和R3d如规范中所定义,以及其药物组合物和使用方法。