Using CC(C)(CN=[N+]=[N-])C1=C(C(=O)OCc2ccc([N+](=O)[O-])cc2)N2C(=O)CC2O1 to produce CC(C)(CN)C1=C(C(=O)O)N2C(=O)CC2O1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.