The present invention relates to compounds of the formula (I):
and pharmaceutically acceptable salts thereof, to processes for the preparation of, intermediates used in the preparation of, and compositions containing such compounds and the uses of such compounds for the treatment of pain.
本发明涉及式(I)的化合物及其药学上可接受的盐,制备过程中使用的
中间体,含有这种化合物的组合物以及这种化合物用于治疗疼痛的用途。