Three new diterpenes, helioscopinolides A, B and C, have been isolated from the plant Euphorbiahelioscopia L., and their stereostructures also been elucidated on the basis of their spectral and chemical data coupled with an X-ray crystallographic analysis of helioscopinolide A.
三种新的二萜类天竺葵内酯 A、B 和 C,已从植物大戟属植物中分离出来,并且它们的立体结构也基于它们的光谱和化学数据以及天葵内酯 A 的 X 射线晶体学分析得到阐明。