Using O=C([O-])[O-], COc1ccc(S(=O)(=O)Nc2nc(-c3cccc([N+](=O)[O-])c3)cs2)cc1OC to produce COc1ccc(S(=O)(=O)N(C)c2nc(-c3cccc([N+](=O)[O-])c3)cs2)cc1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.