Using O=CC(C=O)[N+](=O)[O-], Nc1cc(CC(F)(F)F)n[nH]1 to produce O=[N+]([O-])c1cnc2[nH]nc(CC(F)(F)F)c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.