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.
The present invention provides a compound of formula (I)
or its salts or pharmaceutically acceptable derivatives thereof, wherein R1, R2, R3, R4, R5, X1, and j are defined herein. The compounds are useful as potassium ion channel inhibitors.