Using CCOc1ccc(-c2cc3cc[nH]c3cc2Cl)cc1, O=C(Cl)C(Cl)(Cl)Cl to produce CCOc1ccc(-c2cc3c(C(=O)C(Cl)(Cl)Cl)c[nH]c3cc2Cl)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.