Using COc1ccc(I)cc1C12CC3CC(CC(C3)C1)C2, OB(O)c1ccc(Br)cc1 to produce COc1ccc(-c2ccc(Br)cc2)cc1C12CC3CC(CC(C3)C1)C2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.