一种来自夜香树的螺甾烷醇糖苷。

A spirostanol glycoside from Cestrum nocturnum.

作者信息

Ahmad V U, Baqai F T, Fatima I, Ahmad R

机构信息

H.E.J. Research Institute of Chemistry, University of Karachi, Pakistan.

出版信息

Phytochemistry. 1991;30(9):3057-61. doi: 10.1016/s0031-9422(00)98252-9.

DOI:10.1016/s0031-9422(00)98252-9

PMID:1367796

Abstract

A new steroidal saponin named nocturnoside A has been isolated from the methanolic extract of the fresh leaves of Cestrum nocturnum and has been characterized by 13C NMR spectroscopy to be 3-O-[beta-D-glucopyranosyl(1----3)-beta-D-glucopyranosyl(1----2)-beta-D- glucopyranosyl((3----1)-beta-D-xylopyranosyl)(1----4)-beta-D- galactopyranosyl) (25R)-spirost-5-ene-2 alpha,3 beta-diol.

摘要

从夜香树新鲜叶子的甲醇提取物中分离出一种名为夜香苷A的新甾体皂苷，通过13C核磁共振光谱对其进行表征，确定其为3 - O - β - D - 吡喃葡萄糖基(1→3)-β - D - 吡喃葡萄糖基(1→2)-β - D - 吡喃葡萄糖基((3→1)-β - D - 吡喃木糖基)(1→4)-β - D - 吡喃半乳糖基-螺旋甾-5-烯-2α,3β - 二醇。