5-[5-phenyl-4-(pyridin-2-ylmethylamino)quinazolin-2-yl]pyridin-3-ylsulfonylphosphoramidic acid and phosphono-substituted derivative thereof and use thereof for the preparation of medicaments

摘要

A compound of structural formula (I), wherein R is H or —PO3H or a pharmaceutically acceptable salt form thereof. The compounds are useful as inhibitors of potassium channel function and in the treatment and prevention of arrhythmia, IKur-associated disorders, and other disorders mediated by ion channel function.