Using Oc1ccc(F)cc1F, NS(=O)(=O)c1ccc(F)c(Br)c1 to produce NS(=O)(=O)c1ccc(Oc2ccc(F)cc2F)c(Br)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.