Using CC1CC(=O)NN=C1c1ccc2nc(-c3ccc([N+](=O)[O-])o3)[nH]c2c1 to produce CC1CC(=O)NN=C1c1ccc2nc(-c3ccc(N)o3)[nH]c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.