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 a p2x7 antagonist.
user
CCOCCNc1ccc2c(C(=O)NCC(c3cnc(C(F)(F)F)nc3)N3CCC(F)(F)CC3)cccc2n1
assistant