You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Can you create a molecule that matches the given characteristics? The molecule is a ccr5 antagonist, a ccr2 antagonist, a ccr3 antagonist, and chemokine receptor modulator.
user
CC1(CO)CCN(C(=O)CCN2CCN(C(=O)C=Cc3ccc(Cl)c(Cl)c3)CCC2=O)CC1
assistant