Using COC(=O)c1ccc2c(c1)-c1nc(C#N)cn1CCO2, O=C([O-])[O-] to produce COC(=O)c1ccc2c(c1)-c1nc(C(N)=O)cn1CCO2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.