Using C=CC(=O)N1CC(N2CCC(C(=O)NCc3cc(Cl)c(Cl)cc3OC)CC2)C1 to produce C=CC(=O)N1CC(N2CCC(C(=O)NCc3cc(Cl)c(Cl)cc3O)CC2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.