Using O=C([O-])[O-], O=[N+]([O-])c1ccc(Oc2c(F)c(F)c([N+](=O)[O-])c(F)c2F)cc1OCc1ccccc1 to produce O=[N+]([O-])c1ccc(Oc2c(F)c(O)c([N+](=O)[O-])c(F)c2F)cc1OCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.