Using COc1ccc(Br)c(-c2ccccc2)c1, OB(O)c1ccc2ccc3cccc4ccc1c2c34 to produce COc1ccc(-c2ccc3ccc4cccc5ccc2c3c45)c(-c2ccccc2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.