Using Nc1cc(C(=O)Nc2cc(C(F)(F)F)ccn2)c(OC(F)F)cc1[N+](=O)[O-] to produce Nc1cc(OC(F)F)c(C(=O)Nc2cc(C(F)(F)F)ccn2)cc1N, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.