Using CC(C)(C)OC(=O)NC1CCc2ccc(C#N)cc2C1Cc1ccc(Cl)cc1 to produce CC(C)(C)OC(=O)NC1CCc2ccc(CN)cc2C1Cc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.