Using NS(=O)(=O)c1cncc(C(=O)O)c1, COC(=O)c1c(-c2ccccc2)ccn1N to produce COC(=O)c1c(-c2ccccc2)ccn1NC(=O)c1cncc(S(N)(=O)=O)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.