Isolation and structure (X-ray analysis) of a new C25 quassinoid soulameolide from Soulamea tomentosa
Abstract
The structure of soulameolide, a novel C25 quassinoid isolated from the leaves of Soulamea tomentosa(Brongn. and Gris), has been established from spectral data and by single-crystal X-ray analysis; the previously known picrasin B, 6-hydroxypicrasin B, and iso-brucein A were also isolated.