Using O=C(O)C(O)C(F)(F)F, Nc1cc([N+](=O)[O-])c([N+](=O)[O-])cc1N to produce O=[N+]([O-])c1cc2nc(C(O)C(F)(F)F)[nH]c2cc1[N+](=O)[O-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.