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
Cc1nc(C(=O)N2CCCCC2C(Cl)c2nc3ccccc3[nH]2)c(-c2ccc(F)cc2)s1
assistant