You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I need a molecule that meets the following conditions: The molecule is a ccr2 antagonist. Please represent the molecule in SMILES.
user
O=C(C=Cc1cc(F)cc(F)c1)NC1CCC(CN2CCC(c3ccccc3F)CC2)C1
assistant