You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Generate a molecule that fulfills the requirement: The molecule is a ccr5 antagonist that impacts hiv treatment.
user
CC(=O)N1CCc2nc(C)n(C3CC4CCC(C3)N4CCC(c3ccccc3)N(C)C(=O)O)c2C1
assistant