Using COC(=O)C(C(C)=O)C(=O)c1ccc([N+](=O)[O-])cc1, NO to produce COC(=O)c1c(C)noc1-c1ccc([N+](=O)[O-])cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.