申请人:Hoffmann-La Roche Inc.
公开号:US20170197969A1
公开(公告)日:2017-07-13
The present invention provides compounds of formula (I)
wherein A, X
1
, X
2
, R
1
, R
2
, R
3
, R
4
and R
5
are as described herein, as well as pharmaceutically acceptable salts thereof. Further the present invention is concerned with the manufacture of the compounds of formula (I), pharmaceutical compositions comprising them and their use as medicaments.