Using O=S(=O)(c1ccccc1)N(F)S(=O)(=O)c1ccccc1, CS(=O)(=O)Cc1ccc(Br)cn1 to produce CS(=O)(=O)C(F)c1ccc(Br)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.