Using CC(=C1C(=O)Nc2ccc([N+](=O)[O-])cc21)c1c[nH]cn1 to produce CC(=C1C(=O)Nc2ccc(N)cc21)c1c[nH]cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.