Using CCCCCCCN(CCCCCO)C(=O)Nc1ccc(F)cc1F, BrC(Br)(Br)Br to produce CCCCCCCN(CCCCCBr)C(=O)Nc1ccc(F)cc1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.