Using Cc1ccc(S(=O)(=O)Oc2cc([N+](=O)[O-])c(F)cc2Cl)cc1[N+](=O)[O-] to produce O=[N+]([O-])c1cc(O)c(Cl)cc1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.