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 serotonin antagonist class of molecules.
user
C=CC=CC(=CN)CNC(=O)c1ccc(OC)c(C(=O)NCC(C=CC=C)=CN)c1
assistant