波谱学杂志 ›› 1992, Vol. 9 ›› Issue (2): 131-140.

• 研究论文 • 上一篇    下一篇

一种新的三萜化合物的2D NMR研究

王敏1, 王毅1, 汪汉卿1, 郑尚珍2, 孙丽萍2, 沈序维2   

  1. 1. 中国科学院兰州化学物理研究所, 兰州 730000;
    2. 西北师范大学化学系, 兰州 730000
  • 收稿日期:1991-09-18 修回日期:1991-11-15 出版日期:1992-06-05 发布日期:2018-01-20

IDENTIFICATION OF A NEW TRITERPENE FROM A. ADSURGENS PALL BY 2D NMR

Wang Min1, Wang Yi1, Wang Hanqing1, Zheng Shangzhen2, Sun Liping2, Shen Xuwei2   

  1. 1. Lanzhou Institute of Chemical Physics, The Chinese Academy of Sciences, Lanzhou 730000;
    2. Department of Chemistry, Northwest Normal University
  • Received:1991-09-18 Revised:1991-11-15 Online:1992-06-05 Published:2018-01-20

摘要: 本文采用FAB-MS,FTIR和NMR等技术对从沙打旺牧草分离出的一种新的三萜化合物进行结构鉴定,结果表明该化合物为(20R,24S)-3,16-二羰基-6α,25-二羟基-20,24-环氧-9,10环羊毛甾酮.用2D NMR技术,包括1H-13C HETCOR,COLOC,1H-1H COSY对,1H和13C NMR进行归属.

关键词: 三萜化合物, 化学位移, 归属, 2D NMR

Abstract: The structural analysis of compound (1) was carried out using NMR. Several methods,including 1H-1H two-dimensional shift correlation spectroscopy, 13C-1H two-dimensional shift correlation spectroscopy, COLOC (COrrelation spectroscopy via LOng rang Coupling) and DEPT were used for chemical assignment. This investigation demonstrates the power of two-dimensional NMR techniques in the structural determination of natural products.

Key words: Tritcrpene, Chemical shift, Assignment, 2D NMR