Using CCOC(=O)c1c(NCc2ccccn2)c(C#N)c(=O)n2ccccc12 to produce COC(=O)c1c(NCc2ccccn2)c(C#N)c(=O)n2ccccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.