Using OB(O)c1ccc(Cl)cc1, COc1cc(C(C)(C)C)cc(C(C)(C)C)c1Br to produce COc1cc(C(C)(C)C)cc(C(C)(C)C)c1-c1ccc(Cl)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.