Using CC1(C)C(=O)N(c2ccc(C#N)c(C(F)(F)F)c2)C(=O)C1(C)CCO, BrC(Br)(Br)Br to produce CC1(C)C(=O)N(c2ccc(C#N)c(C(F)(F)F)c2)C(=O)C1(C)CCBr, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.