Using O=[N+]([O-])c1ccc(F)c(F)c1, O=C(Nc1cn2cc(O)ccc2n1)C1CC1 to produce O=C(Nc1cn2cc(Oc3ccc([N+](=O)[O-])cc3F)ccc2n1)C1CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.