Using Cc1ccc(N2CCO[C@H]([C@@H](O)C(=O)Nc3ccc(C#N)cc3)C2=O)cc1[N+](=O)[O-] to produce Cc1ccc(N2CCO[C@H]([C@@H](O)C(=O)Nc3ccc(C#N)cc3)C2=O)cc1N, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.