Using CCN(CC)S(F)(F)F, CC(O)(c1cccc(Br)n1)c1cccc(Br)n1 to produce CC(F)(c1cccc(Br)n1)c1cccc(Br)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.