Composto de amida de ácido acrílico de indazol

摘要

A compound of the formula;
wherein ring X is benzene or pyridine; R 1 is substituted alkyl; R 2 is optionally substituted aryl or optionally substituted heterocyclic group; R 3 is hydrogen or alkyl,; R 4 is hydrogen, halogen or alkyl; R 5 is hydrogen or alkyl; R 6 and R 7 are the same or different and each hydrogen or halogen, or a pharmaceutically acceptable salt thereof, which is useful as I Kur blocker effective for preventing or treating cardiac arrhythmia such as atrial fibrillation.