Using COC(=O)CN(Cc1ccccc1N)S(=O)(=O)c1ccc(OC)cc1 to produce COc1ccc(S(=O)(=O)N(CC(=O)O)Cc2ccccc2N)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.