Using NS(=O)(=O)c1cc(C(=O)O)c(Oc2ccccc2)cc1Oc1ccccc1, COc1ccccc1CN to produce COc1ccccc1CNc1cc(Oc2ccccc2)c(S(N)(=O)=O)cc1C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.