中文摘要：

目的：对狼毒大戟的萜类成分进行研究。方法：采用硅胶柱层析色谱技术分离并纯化化合物,根据理化性质及波谱技术鉴定其结构。结果：从狼毒大戟的乙酸乙酯部位中分离得到8个二萜化合物和3个三萜化合物,分别鉴定为岩大戟内酯A（1）,岩大戟内酯B（2）,prostratin（3）,ent-kaurane-3-oxo-16α,17-diol（4）,antiquorin（5）,neriifolene（6）,ent-ati-sane-3β,16α,17-triol（7）,kauranoic acid（8）,乙酰木油树酸（9）,24-亚甲基环木菠萝烷醇（10）,乙酰羽扇豆醇（11）。结论：化合物4-10为首次从该植物中分得。

英文摘要：

AIM：To study the terpenes in the roots of Euphorbia fischeriana.METHODS：The compounds were isolated by silica gel column chromatography,and their structures were identified on the basis of physiochemical and spectral data.RESULTS：Eight diterpenes and four triterpenes were obtained from the ethyl acetate extract,and their structures were elucidated as jolkinolide A（1）,jolkinolide B（2）,prostratin（3）,ent-kaurane-3-oxo-16α,17-diol（4）,antiquorin（5）,neriifolene（6）,ent-atisane-3β,16α,17-triol（7）,kauranoic acid（8）,aleuritolic acid（9）,24-methyl-enecy- cloartanol（10）and lupenyl acetate（11）.CONCLUSION：Compounds 4-10 were isolated from this plant for the first time.