高等学校化学学报 ›› 1991, Vol. 12 ›› Issue (7): 910.

• 论文 • 上一篇    下一篇

24-亚甲基-胆甾-3β,5α,6β,19-四醇--一种罕见的含19-羟基的多羟基甾醇

曾陇梅, 王贵阳生, 李凤英, 钟永利   

  1. 中山大学化学系, 广州, 510275
  • 收稿日期:1991-02-25 出版日期:1991-07-24 发布日期:1991-07-24
  • 通讯作者: 曾陇梅
  • 基金资助:

    国家自然科学基金

24-Methylene-Cholestane-3β,5α,6β,19-tetraol--a Novel Polyhydroxylated Sterol with Rare 19-Hydroxyl Group

Zeng Long-mei, Wang Guiyangsheng, Li Feng-ying, Zhong Yong-li   

  1. Department of Chemistry, Zhongskm University, Guangzhou, 510275
  • Received:1991-02-25 Online:1991-07-24 Published:1991-07-24

摘要: 从我国西沙群岛采集的软珊瑚Nephtheaalbida和南沙群岛采集的N.tixiexaeuerseueldt的乙醇,抽提物中,通过硅胶层析分离出一种罕见的含19-羟基的多羟基甾醇--Nephalsterol-A(1),该物质为无色针状结晶,m.p.242~243℃,[a]D20=O(C 0.053,CH3OH),为一新化合物。

关键词: 软珊瑚, 甾醇, 24-亚甲基-胆甾-3&beta, 5&alpha, 6&beta, 19-四醇

Abstract: A novel polyhydroxylated sterol, Nephalsterol-A(1)with rare 19-hydroxyl group was obtained from the ethanol extracts of the soft corals Nephthea albida and Nephthea tiexieral verseveldt collected from Xisa Islands and Nansa Islands respectively, colorless needle crystal, m. p. 242-243℃, [α]D20 = 0(C 0. 053, MeOH). The structure of (1) has been established as 24-methylene-Cholestane-3β, 5α,6β,19-tetraol by means of IR, 1HNMR, 13CNMR and MS technique.

Key words: Soft corals, (Nephthea albida,Nephthea tixiexae verseveldt), Sterol, 24-Methylene-cholestane-3β,5α,6β,19-tetraol

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