Using COC1(C(F)(F)F)CC(c2nc(-c3ccc(C)c([N+](=O)[O-])c3)no2)C1 to produce COC1(C(F)(F)F)CC(c2nc(-c3ccc(C)c(N)c3)no2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.