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 based on this description: The molecule is both a serotonin agonist and a serotonin antagonist.
user
O=C(O)N1CCC2C(C1)c1cc(-c3ccc(C(F)(F)F)cc3Cl)cc3c1N2CCCC3
assistant