Using COc1ccc(-c2cc(C#N)c3[nH]c4cc(OC)ccc4c3c2)cc1, O=C([O-])[O-] to produce COc1ccc(-c2cc(C(N)=O)c3[nH]c4cc(OC)ccc4c3c2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.