Using COc1cc(C2(C#N)CCC(=O)CC2)ccc1[N+](=O)[O-] to produce COc1cc(C2(C#N)CCC(O)CC2)ccc1[N+](=O)[O-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.