You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Based on the given information, generate a molecule that meets the desired specifications: The molecule is a chemokine receptor modulator.
user
CC(c1ccc(Br)cc1)N1CCC2(CCN(CCC(c3ccccc3)c3ccccc3)CC2)C1=O
assistant