Using Nc1ccc(Cl)cc1Cl, CCOC(=O)Cn1c(Cl)nc2c(Cl)ccc(C(CC)CC)c21 to produce CCOC(=O)Cn1c(Nc2ccc(Cl)cc2Cl)nc2c(Cl)ccc(C(CC)CC)c21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.