You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I give you a description of a molecule, and you need to return one molecule in SMILES that meets the description. The description: It belongs to the orexin receptor antagonist class of molecules.
user
COc1ccc2nc(C3CCCN3C(=O)c3nc(C)sc3-c3ccc(Br)cc3)[nH]c2c1
assistant