Using O=C([O-])[O-], Cn1cc(-c2nccn3nc(Nc4ccc(C5(C#N)CC5)cc4)nc23)cn1 to produce Cn1cc(-c2nccn3nc(Nc4ccc(C5(C(N)=O)CC5)cc4)nc23)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.