You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Come up with a molecule based on the description: The molecule is a p2x7 modulator member of the pain treatment class.
user
O=C(c1cccc(C(F)(F)F)c1Cl)N1CCn2c(-c3ccc(Cl)cc3)cnc2C1
assistant