Using [O-][I+3]([O-])([O-])[O-], CCOc1nc(C=CN(C)C)c([N+](=O)[O-])cc1C#N to produce CCOc1nc(C=O)c([N+](=O)[O-])cc1C#N, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.