Using C#CC(C)(C)CCOc1ccc(Cl)cc1, CCOC(=O)C(F)(F)F to produce CC(C)(C#CC(=O)C(F)(F)F)CCOc1ccc(Cl)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.