从网球花的鳞茎中分离出的五种新的多氧胆甾烷双糖链皂苷。

Five new polyoxygenated cholestane bisdesmosides from the bulbs of Galtonia candicans.

作者信息

Mimaki Y, Kuroda M, Yokosuka A, Sashida Y

机构信息

Laboratory of Medicinal Plant Science, School of Pharmacy, Tokyo University of Pharmacy and Life Science, 1432-1, Horinouchi, Hachioji, Tokyo 192-0392, Japan.

出版信息

J Nat Prod. 2001 Aug;64(8):1069-72. doi: 10.1021/np010208d.

DOI:10.1021/np010208d

Abstract

Two new cholestane bisdesmosides (1, 2) based upon (22S)-cholest-5-ene-3 beta,16 beta,22-triol with an acetyl group at the sugar moiety and three new ones (3-5) based upon (22S)-cholest-5-ene-1 beta,3 beta,16 beta,22-tetrol, along with a known cholestane glycoside, were isolated from the bulbs of Galtonia candicans. The structures of the new compounds were determined by spectroscopic analysis and chemical transformations.

摘要

从网球花的鳞茎中分离出两种基于(22S)-胆甾-5-烯-3β,16β,22-三醇且糖部分带有乙酰基的新胆甾烷双糖苷(1, 2)，以及三种基于(22S)-胆甾-5-烯-1β,3β,16β,22-四醇的新化合物(3 - 5)，还有一种已知的胆甾烷糖苷。通过光谱分析和化学转化确定了新化合物的结构。

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