波谱学杂志 ›› 1998, Vol. 15 ›› Issue (3): 273-277.

• 研究论文 • 上一篇    下一篇

3-氧,11α-羟基、Δ12-齐墩果烯及其类似化合物的13C NMR分析

龚复俊, 袁晓, 王国亮, 南蓬   

  1. 中国科学院武汉植物研究, 武汉 430074
  • 收稿日期:1998-01-19 修回日期:1998-03-03 出版日期:1998-06-05 发布日期:2018-01-13
  • 作者简介:龚复俊,男,33岁,硕士,助研

13C NMR ANALYSIS OF 3-OXE,11-HYDROXY-OLEAN-12-ENE AND ITS ANALOGUE

Gong Fujun, Yuan Xiao, Wang Guoling, Nan Peng   

  1. Wuhan Institute of Botany, The Chinese Academy of Sciences, Wuhan 430074
  • Received:1998-01-19 Revised:1998-03-03 Online:1998-06-05 Published:2018-01-13

摘要: 化合物1-8属于近似结构的齐墩果烷型三萜,它们分别为:β-amyrin(1);3-氧,Δ11,13(18)-齐墩果二烯(2);3β-羟基,Δ11,13(18)-齐墩果二烯(3);3β,24-二羟基,Δ11,13(18)-齐墩果二烯(4);3,11-二氧,Δ12-齐墩果烯(5);3-氧,Δ9(11),12-齐墩果二烯(6);3-氧,11α-羟基,Δ12-齐墩果烯(7);3β,11α-二羟基,Δ12-齐墩果烯(8).它们的13C NMR化学位移归属已确定,并通过了DEPT谱的验证.按结构特点分为三组:2~4为第一组,1,5,7,8为第二组,6为第三组.本文重点讨论了它们的13C NMR化学位移由其结构特点引起的变化,得到了化学位移与结构相关的有意义的结果.

关键词: 13C NMR, 3-氧, 11α-羟基, Δ12-齐墩果烯, 齐墩果烷型三萜

Abstract: Compounds 1-8 belong to oleanane type triterpenoids with similiar structures, 13C NMR spectra of β-amyrin (1); 3-oxo-olean-11,13(18)-diene (2); 3β-hydroxy olean-11,13(18)-diene (3); 3β,24-dihydroxy-olean-11,13(18)-diene (4); 3,11-dioxo-olean-12-ene (5); 3-oxo-olean-9(11),12-diene (6); 3-oxo, 11α-hydroxy-olean-12-ene(7); 3β,11α-dihydroxy-oean-12-ene-(8) were studied, and spectral assignments were carried out. The assignments were checked by their DEPT spectra. They were divided into three guoups, 2-4 in the first guoup; 1,5,7,8 in the second and 6 in the third. This paper investigated and discussed mainly the changes of their 13C NMR chemical shift values which were taken place by the structural characterization and substituted groups. Some significant results of chemical shifts in relation to structures were obtained.

Key words: 13C NMR, Oleanane type triterpenoids, Substituted groups