Using BrC(Br)Br, Nc1nn(-c2c(Cl)cc(C(F)(F)F)cc2Cl)cc1C1CC1(Br)Br to produce FC(F)(F)c1cc(Cl)c(-n2cc(C3CC3(Br)Br)c(Br)n2)c(Cl)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.