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 chemokine receptor antagonist.
user
CC(c1ccc(Cl)cc1F)n1cnc2ccc(N3CCN(C(=O)C4CCCCN4)C(CO)C3)cc21
assistant