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: It belongs to the orexin receptor antagonist class of molecules. Please represent the molecule in SMILES.
user
Cc1ccc(-n2cccn2)c(C(=O)N2CC3CCN(c4cnc5cc(F)c(F)cc5n4)CC32)c1
assistant