Using O=C([O-])[O-], COc1ccc(-c2c[nH]c3ncccc23)cc1C#N to produce COc1ccc(-c2c[nH]c3ncccc23)cc1C(N)=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.