Using CCOC(=O)CN, O=C(O)c1ccc(S(=O)(=O)Nc2ccccc2Oc2ccc(Cl)cc2Cl)cc1 to produce CCOC(=O)CNC(=O)c1ccc(S(=O)(=O)Nc2ccccc2Oc2ccc(Cl)cc2Cl)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.