You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Based on the given information, generate a molecule that meets the desired specifications: It belongs to the chemokine receptor antagonist class of molecules.
user
O=C(NCC(=O)N1CCC(N2CCC(c3ccccc3)CC2)C1)c1c(F)cccc1C(F)(F)F
assistant