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 ccr2 antagonist.
user
C=C(C(C)=C(N=CN)C(=O)N1CCC(NC2CCOCC2OC)CC1)N1CCN(c2cc(Cl)cc(Cl)c2)CC1
assistant