Using Brc1ccc(I)cc1, OB(O)c1ccc2cc(-c3cccc4ccccc34)ccc2c1 to produce Brc1ccc(-c2ccc3cc(-c4cccc5ccccc45)ccc3c2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.