Using NS(=O)(=O)c1ccccc1, O=C(O)c1cccc([N+](=O)[O-])c1 to produce O=C(NS(=O)(=O)c1ccccc1)c1cccc([N+](=O)[O-])c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.