Using CC(C)ON=C(CNC(=O)c1ccccc1C(F)(F)F)c1ncc(Br)cc1Cl, C#CC(C)(C)C to produce CC(C)ON=C(CNC(=O)c1ccccc1C(F)(F)F)c1ncc(C#CC(C)(C)C)cc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.