申请人:Hoffmann-La Roche Inc.
公开号:US20160168158A1
公开(公告)日:2016-06-16
The invention relates to a compound of formula (I)
wherein R
1
to R
4
are defined as in the description and in the claims. The compound of formula (I) can be used as a medicament.
本发明涉及一种化合物,其化学式为(I),其中R1到R4的定义如说明书和权利要求书中所述。该化合物可以作为药物使用。