1. Smithsonian Institution, Department of Botany, Washington D.C. 20560, U.S.A.
Abstract:
The aerial parts of a new Dimerostemma species afforded four eudesmanolides which are all derivatives of arbusculin B and an aldehyde, obviously a degradation product of syringenin. A reinvestigation of Dimerostemma asperatum gave a further dimerostemmolide.