Using ClC(Cl)(Cl)Cl, CC(C)C(C#N)Nc1ccc(C(F)(F)F)cc1 to produce CC(C)C(C#N)Nc1ccc(C(F)(F)F)cc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.