You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Generate a molecule that fulfills the requirement: The molecule is a orexin receptor antagonist.
user
COc1cc(OC)cc(C(=O)NCC2C3CC3CN2C(=O)c2nc(C)sc2-c2cccc(C)c2)c1
assistant