You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
The molecule is a chemokine receptor antagonist. Use the above information to create a molecule.
user
CC(C)(O)CCN1CCC2(CC1)CCN(Cc1ccc(C(=O)N(Cc3ncc[nH]3)Cc3ncc[nH]3)cc1)C2
assistant