Using CCOc1ccc(Sc2ccc([N+](=O)[O-])cc2)c(Cl)c1Cl to produce O=[N+]([O-])c1ccc(Sc2ccc(O)c(Cl)c2Cl)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.