Using Oc1ccc(Br)cc1, COc1ccc(C2=C(Br)c3ccc(OC)cc3S2=O)cc1 to produce COc1ccc(C2=C(Oc3ccc(Br)cc3)c3ccc(OC)cc3S2=O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.