You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Generate a molecule that fulfills the requirement: It belongs to the orexin receptor antagonist class of molecules.
user
O=C(NCC1SCCN1C(=O)c1nc(C2CC2)sc1-c1cccc(F)c1)c1cccc2c1OCCO2
assistant