Using CC(=O)c1cccc(B(O)O)c1, CC1(C)OC(c2ccc(S(C)(=O)=O)cc2)=C(Br)C1=O to produce CC(=O)c1cccc(C2=C(c3ccc(S(C)(=O)=O)cc3)OC(C)(C)C2=O)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.