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曼地亚红豆杉中一个新3, 11-环紫杉烷型二萜

杨蓉, 谢可辉, 蔡田芝, 傅宏征*

  

  1. 北京大学医学部 天然药物及仿生药物国家重点实验室, 北京 100191
  • 收稿日期:2012-09-26 修回日期:2012-12-03 出版日期:2013-01-20 发布日期:2013-01-20
  • 通讯作者: 傅宏征*

A new 3, 11-cyclotaxane diterpenoid from Taxus media Rehd. cv. Hicksii

Rong Yang, Kehui Xie, Tianzhi Cai, Hongzheng Fu*   

  1. State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing 100191, China
  • Received:2012-09-26 Revised:2012-12-03 Online:2013-01-20 Published:2013-01-20
  • Contact: Hongzheng Fu*

摘要:

研究曼地亚红豆杉针叶的化学成分, 应用硅胶、Sephadex LH-20、MCI和反相HPLC等多种色谱手段进行分离和纯化, 通过1D, 2D NMR和MS方法确定化合物的结构。分离得到一个新化合物, 命名为1β,2α,9α,10β-tetrahydroxy-5α-cinnamoyloxy-3,11-cyclotaxa-4(20)-en-13-one (1)。另外鉴定了6个已知紫杉烷型二萜类化合物, 分别为2α,7β,9α,10β,13α-pentaacetoxytaxa-4(20),11-dien-5α-ol (2), 2-deacetoxy-5-decinnamoyltaxinine J (3), taxuspine F (4), taxuspinanane K (5), taxchin A (6), baccatin IV (7), 其中化合物2, 5, 6, 7为首次在曼地亚红豆杉中得到。

关键词: 曼地亚红豆杉, 紫杉烷型二萜, 化学成分, 结构鉴定

Abstract:

The aim of current study was to investigate the chemical constituents of the needles of Taxus media. The isolation and purification of components were achieved by a series of chromatography including silica gel, Sephadex LH-20, MCI and reversed-phase HPLC. Their structures were indentified based on 1D, 2D NMR, and mass spectral analysis. Seven taxane diterpenoids were isolated and identified as 1β,2α,9α,10β-tetrahydroxy-5α-cinnamoyloxy-3,11-cyclotaxa-4(20)-en-13-one (1), 2α, 7β, 9α, 10β, 13α-pentaacetoxytaxa-4(20), 11-dien-5α-ol (2), 2-deacetoxy-5-decinnamoyltaxinine J (3), taxuspine F (4), taxuspinanane K (5), taxchin A (6), and baccatin IV (7). Among them, 1 is a new compound and compounds 2, 5, 6 and 7 are isolated from Taxus media for the first time.

Key words: Taxus media, Taxane diterpenoid, Chemical constituents, Structural identification

中图分类号: 

Supporting:

Foundation item: National Natural Science Foundation of China (Grant No. 30973628).
*Corresponding author. Tel./Fax: 86-10-82805212