Using CCO, COCCn1nc2c(N)nc3ccccc3c2c1CC(C)(C)C#N to produce COCCn1nc2c(N)nc3ccccc3c2c1CC(C)(C)C(N)=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.