rel-(8R,8'S,8''S,8'''R)-5',5'''-bis(7-(3,4-methylenedioxyphenyl)-7'-(4'-hydroxy-3'-methoxyphenyl)-8.8'-lignane)
rel-(8r,8's,8''s,8'''r)-5',5'''-bis(7-(3,4-methylenedioxyphenyl)-7'-(4'-hydroxy-3'-methoxyphenyl)-8.8'-lignane)