Using O=S(c1ccc(C=Cc2nc(CCl)co2)cc1)C(F)(F)F, O=S([O-])c1ccc(Br)cc1 to produce O=S(c1ccc(C=Cc2nc(CS(=O)(=O)c3ccc(Br)cc3)co2)cc1)C(F)(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.