Using OCc1cn(C(c2ccccc2)(c2ccccc2)c2ccccc2)nc1C(F)(F)F, BrC(Br)(Br)Br to produce FC(F)(F)c1nn(C(c2ccccc2)(c2ccccc2)c2ccccc2)cc1CBr, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.