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吉祥草中的一个新甾体皂苷

邢鹏鹏, 吴 琼, 吴再旺, 付宏征*   

  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:2011-03-25 修回日期:2011-05-25 出版日期:2011-07-01 发布日期:2011-07-01
  • 通讯作者: 付宏征*

A new pregnane-type glycoside from Reineckia carnea

Peng-Peng Xing, Qiong Wu, Zai-Wang Wu, Hong-Zheng Fu*   

  1. State Key Laboratory of Natural and Biomimetic Drugs, Peking University Health Science Center, Beijing 100191, China
  • Received:2011-03-25 Revised:2011-05-25 Online:2011-07-01 Published:2011-07-01
  • Contact: Hong-Zheng Fu*

摘要:

对吉祥草地上部分的化学成分进行研究。采用多种色谱手段进行分离纯化, 得到单体化合物, 通过理化性质及1D, 2D NMR方法确定了化合物的结构。分离得到一个新的孕甾烷型甾体皂苷, 命名为 1α,3β-dihydroxy-5β-pregn-16-ene-20-one-1-O-α-L-arabinosyl-(1→2)-α-L-rhamnoside。另鉴定了6个已知化合物,分别为β-香树脂醇 (2), 豆甾醇 (3), α-菠甾醇-3-O-葡萄糖苷 (4), 柚皮素 (5), β-谷甾醇 (6), 胡萝卜苷 (7), 其中化合物2, 4, 5为首次在该植物中分离得到。

关键词: 吉祥草, 甾体皂苷, 皂苷

Abstract: The aim of current study was to investigate the chemical components of the aerial part of Reineckia carnea, collected in Yunnan Province of China. Repeated column chromatography (CC) separations were performed to isolate and purify components. Compounds were identified by the analysis of their 1D and 2D NMR data as well as IR and MS spectra. A new pregnane-type glycoside, named 1α,3β-diol-5β-pregn-16-ene-20-one-1-O-α-L-arabinosyl-(1→2)-α-L-rhamnoside (1), together with β-amyrin (2), stigmasterol (3), α-spinasterol-3-O-β-D-glucoside (4), naringenin (5), β-sitosterol (6) and daucosterol (7), were isolated from ethyl acetate (EtOAc) and normal butanol (n-BuOH) extracts. Compounds 2, 4, 5 were isolated from this plant for the first time.

Key words: Reineckia carnea, Steroid saponin, Saponin

中图分类号: 

Supporting:

Foundation item: National Natural Science Foundation of China (Grant No. 30973628).
*Corresponding author. Tel.: 86-10-82805212; Fax: 86-10-82802724;
E-mail: drhzfu@yahoo.com.cn