Using COC(=O)/C=C/c1ccc(NC(C)=O)c([N+](=O)[O-])c1C(=O)OC to produce COC(=O)CCc1ccc(NC(C)=O)c(N)c1C(=O)OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.