You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I give you a description of a molecule, and you need to return one molecule in SMILES that meets the description. The description: The molecule is a ccr2 antagonist.
user
COc1ccc(C2CCN(CC(O)C3(O)CCN(C(=O)C=Cc4ccc(Cl)cc4)CC3)CC2)cc1
assistant