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 ccr3 antagonist and a ccr2 antagonist, belonging to the ccr5 antagonist class of molecules.
user
O=C(OCc1ccccc1)N(C(CO)CCN1CCC2(CC2)C(O)C1)C(CO)CCN1CCC2(CC2)C(O)C1
assistant