Using COc1ccc(Cn2c(=O)oc(=O)c3ccccc32)cc1, CCOC(=O)CC#N to produce COc1ccc(CN2C(=O)C(C#N)C(=O)c3ccccc32)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.