The present invention provides compounds of formula (I): wherein A, R
1
, R
2
, R
3
I
X, and Z are defined herein, which are potassium channel inhibitors. The invention further provides pharmaceutical compositions comprising the compounds of formula (I) and their use in therapy, in particular in treatment of diseases or conditions that are mediated by Kir3.1 and/or K
ir
3.4 or any heteromultimers thereof, or that require inhibition of K
ir
3.1 and/or K
ir
3.4 or any heteromultimers thereof.
本发明提供了一种化合物,其
化学式为(I):其中A、R1、R2、R3IX和Z在此定义,这些化合物是
钾通道
抑制剂。该发明还提供了包含
化学式(I)化合物的药物组合物,以及它们在治疗中的应用,特别是在治疗由Kir3.1和/或Kir3.4介导的疾病或症状,或者需要抑制Kir3.1和/或Kir3.4或任何其异源多聚体的情况。