Using COC(=O)c1cc([N+](=O)[O-])n(C(=O)OCc2ccccc2)n1 to produce COC(=O)c1cc(N)n(C(=O)OCc2ccccc2)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.