Abstract:

A new compound (1) named as winchic acid and eight known ones were isolated from the stem barks of Winchia calophylla A. DC. (collected in Xishuangbanna, Yunnan Province of China). The new compound 1 was identified as 3β-hydroxy-27-(4-hydroxy –3-methoxy-E-cinnamoyloxy)-lup-20(29)-en-28-oic acid on the basis of 1D and 2D NMR experiments. The eight known compounds were determined to be lupenone, lupenyl acetate, betulinic acid, α amyrin acetate, ursolic acid, ptiloepoxide, β-amyrin and cycloeucalenol, respectively.

傣族药用植物盆架树中的三萜

朱伟明^1,2  沈月毛¹  洪鑫¹  左国营¹  杨小生¹  郝小江^1*

(1.中国科学院昆明植物研究所植物化学开放研究实验室,昆明,650204；2.云南师范大学化学系,昆明,650092)

摘要：从傣族药用植物盆架树(Winchia calophylla A. DC.)茎皮的石油醚可溶部分分离到9个化合物,经现代波谱技术证明,其中之一为新化合物,命名为盆架酸(winchic acid).另8个已知化合物分别为羽扇豆烯酮、乙酸羽扇豆酯、桦木酸、乙酸-α-香树醇酯、乌索酸、ptiloepoxide、β-香树醇和cycloeucalenol.

关键词 三萜 盆架酸 盆架树 夹竹桃科

*通讯作者 Email: xjhao@mail.kib.ac.cn

Key words: triterpenoid, winchic acid, Winchia calophylla, Apocynaceae