The present invention relates to azetidine amide derivatives derivatives of formula (I) wherein rings A1 A2 and A3 are as described in the description, to pharmaceutically acceptable salts thereof, to their preparation, to pharmaceutical compositions containing one or more compounds of formula (I), and to their use as pharmaceuticals, especially to their use as orexin receptor antagonists.
本发明涉及式(I)的
吡嗪酰胺衍
生物衍
生物,其中环A1、A2和A3如描述中所述,其药学上可接受的盐,其制备方法,含有一种或多种式(I)化合物的药物组合物,以及它们作为药物的用途,特别是它们作为促进睡眠的药物。