You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I need a molecule that meets the following conditions: The molecule is a orexin receptor antagonist. Please represent the molecule in SMILES.
user
COc1cccc(-c2cnc(CC3CCCCN3C(=O)c3nc(C)sc3-c3ccc(F)cc3)[nH]2)c1
assistant