Using Brc1ccc2cc(Br)ccc2c1, OB(O)c1ccccc1-c1ccccc1 to produce Brc1ccc2cc(-c3ccccc3-c3ccccc3)ccc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.