Six Diprenylisoflavones, Derrisisoflavones A—F, from Derris scandens.

Abstract Chromatographic separation of EtOH extracts of the stems of Derris scandens has yielded six new diprenylisoflavones, named derrisisoflavones A–F, together with six known isoflavones. Their structures were elucidated by spectroscopic analyses. The known compounds were lupalbigenin, scandinone, erysenegalensein E, lupinisol A, lupinisoflavone G and 5, 7,4′trihydroxy-6, 8-diprenylisoflavone. Anti-dermatophyte activity of the isolated isoflavones from D . scandens against Trichophyton mentagrophytes was also examined.