This invention provides compounds of the formula I:
and their pharmaceutically acceptable salts, useful as sodium channel blockers, compositions containing the same, therapeutic methods and uses for the same and processes for preparing the same.
本发明提供了式 I 的化合物:
及其药学上可接受的盐类,可用作
钠通道阻滞剂、含有这些化合物的组合物、这些化合物的治疗方法和用途以及制备这些化合物的工艺。