DIHYDROINDOLE AND TETRAHYDROISOQUINOLINE DERIVATIVES USEFUL AS POTASSIUM CHANNEL INHIBITORS

摘要

PROBLEM TO BE SOLVED: To provide a compound useful for the treatment of diseases including arrhythmia, and a pharmaceutical composition comprising the compound.SOLUTION: The present invention provides a compound represented by formula (I) or a salt thereof or a pharmaceutically acceptable derivative thereof (A is a sulfonic acid amide group of a group selected from heteroarylalkyls; Rand Rare H, a substituted/unsubstituted alkyl or the like; n is an integer of 0-3; o is an integer of 0-2, where, when o is 0, n is an integer of 1-3 and when o is 1, n is 1 or 2).SELECTED DRAWING: None