Using Cc1ccc(-c2[nH]c(C(C)(C)C)nc2N)cc1, O=C(Cl)OCC(Cl)(Cl)Cl to produce Cc1ccc(-c2[nH]c(C(C)(C)C)nc2NC(=O)OCC(Cl)(Cl)Cl)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.