Using COc1ccc(COC(=O)c2ccc(S(=O)(=O)N(Cc3ccc(OC)cc3)Cc3ccco3)cc2)cc1 to produce COc1ccc(CN(Cc2ccco2)S(=O)(=O)c2ccc(C(=O)O)cc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.