Using CC(=O)C1(c2n[nH]c3ccc(NC(=O)c4ccc([N+](=O)[O-])cc4)cc23)C=CC=CC1 to produce CC(=O)C1(c2n[nH]c3ccc(NC(=O)c4ccc(N)cc4)cc23)C=CC=CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.