The present invention provides a compound of formula (I)
or its salts or pharmaceutically acceptable derivatives thereof, wherein R
1
, R
2
, R
3
, R
4
, R
5
, X
1
, and j are defined herein. The compounds are useful as potassium ion channel inhibitors.
本发明提供了式(I)的化合物或其盐或其药学上可接受的衍
生物,其中R1,R2,R3,R4,R5,X1和j如本文中所定义。这些化合物可用作
钾离子通道
抑制剂。