Article révisé par les pairs
Résumé : 14-Hydroxychappatinone [1] has been isolated from Hannoa chlorantha together with five known quassinoids: undulatone, desacetylundulatone, chapparinone, klaineanone, and 11-dehydroklaineanone. The structure of the new quassinoid 1 was determined from spectroscopic data.