Using CCOC(=O)c1cnn(-c2ccc(OCC(C)C)c(C#N)c2)c1N to produce CCOC(=O)c1cnn(-c2ccc(OCC(C)C)c(C#N)c2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.