Using O=C(/C=C/c1ccc(C(F)(F)F)cc1Cl)Nc1ccc(CCCO)c(Cl)c1, BrC(Br)(Br)Br to produce O=C(/C=C/c1ccc(C(F)(F)F)cc1Cl)Nc1ccc(CCCBr)c(Cl)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.