Using Nc1cc(Cl)ccc1[N+](=O)[O-], O=S([O-])c1ccccc1 to produce Nc1cc(S(=O)(=O)c2ccccc2)ccc1[N+](=O)[O-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.