申请人:Roche Palo Alto LLC
公开号:US20130296310A1
公开(公告)日:2013-11-07
Compounds of the formula I:
or a pharmaceutically acceptable salt thereof, wherein, R
1
is a group of formula A or formula B,
and X, R
2
, R
3
, R
4
, R
5
, R
6
, R
a
and R
b
are as defined herein. Also provided are methods of using the compounds for treating diseases mediated by a P2X
3
and/or a P2X
2/3
receptor antagonist and methods of making the subject compounds.
化合物I的式子为:或其药学上可接受的盐,其中,R1是公式A或公式B的基团,X、R2、R3、R4、R5、R6、Ra和Rb的定义如本文所述。此外,还提供了使用这些化合物治疗由P2X3和/或P2X2/3受体拮抗剂介导的疾病的方法和制备这些化合物的方法。