You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Based on the given information, generate a molecule that meets the desired specifications: It belongs to the orexin receptor antagonist class of molecules.
user
O=C(c1cccc(Cl)c1-n1nccn1)N1CCOCC1Cc1cc(-c2ncon2)ccc1F
assistant