Using CC(CCCO)C(c1cc(F)ccc1F)S(=O)(=O)c1ccc(Cl)cc1, BrC(Br)(Br)Br to produce CC(CCCBr)C(c1cc(F)ccc1F)S(=O)(=O)c1ccc(Cl)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.