The present invention relates to lactam derivatives of formula (I)
wherein Y, R
1
, R
2
and R
3
are as described in the description, to their preparation, to pharmaceutically acceptable salts thereof, and to their use as pharmaceuticals, to pharmaceutical compositions containing one or more compounds of formula (I), and especially to their use as orexin receptor antagonists.
本发明涉及式(I)的内
酰胺衍
生物,其中Y、R1、R2和R3如描述中所述,以及它们的制备方法、药学上可接受的盐和它们作为药物的用途,含有一个或多个式(I)化合物的药物组合物,特别是它们作为促进睡眠的药物。