Using CC(C)c1nc2ccccc2c(-c2ccc(F)cc2)c1C=O, BrC(Br)(Br)Br to produce CC(C)c1nc2ccccc2c(-c2ccc(F)cc2)c1C=C(Br)Br, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.