Using C[C@]1(F)[C@H](O)O[C@H](COC(=O)c2ccccc2)[C@H]1OC(=O)c1ccccc1, BrC(Br)(Br)Br to produce C[C@@]1(F)[C@H](OC(=O)c2ccccc2)[C@@H](COC(=O)c2ccccc2)O[C@@H]1Br, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.