You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Build a molecule that meets the requirement: The molecule is a ccr5 antagonist and chemokine receptor modulator, belonging to both the ccr3 antagonist and ccr2 antagonist classes of molecules.
user
COCC1CCCN(CCCCN2CCN(C(=O)C=Cc3ccc(Cl)c(Cl)c3)CCC2=O)C1
assistant