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: It belongs to the chemokine receptor antagonist class of molecules.
user
CCC(Nc1c(Nc2cccc(C(=O)N3CC(O)C3)c2O)c(=O)c1=O)c1ccccc1
assistant