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
Cc1ccc(-n2nccn2)c(C(=O)N2CC3CC3C2CSc2nc3cc(C)ccc3n2CCF)c1
assistant