波谱学杂志 ›› 1989, Vol. 6 ›› Issue (3): 386-390.

• 研究论文 • 上一篇    

2D-NMR对皂皮酸-3-氧-葡萄糖醛酸13C,1H的完全指定——介绍HMBC和HOHAHA

徐光漪1, 降旗一夫2, 濑户治男2   

  1. 1. 上海医药工业研究院;
    2. 日本东京大学应用微生物研究所
  • 收稿日期:1988-05-17 修回日期:1988-07-12 出版日期:1989-09-05 发布日期:2018-01-22

COMPLETE 13C, 1H ASSIGNMENTS FOR QUILLAIC ACID-3-O-GLUCURONIC ACID BY TWO-DIMENSIONAL NMR EXPERIMENTS-Introduction of HMBC and HOHAHA

Xu Guangyi1, Kazuo Furihata2, Haruo Seto2   

  1. 1. Shanghai Institute of Pharmaceutical Industry;
    2. Institute of Applied Microbiclogy, The University of Tokyo
  • Received:1988-05-17 Revised:1988-07-12 Online:1989-09-05 Published:2018-01-22

摘要: HMBC是一种测定远程偶合1H-13C相关的十分灵敏的方法,特别适用于检测和甲基质子远程偶合(2J,3J)的碳.HOHAHA谱显示出多次Relay信息,选择适当参数可通过一次实验得到独立自旋体系中所有质子相关信息.
本文用HMBC和HOHAHA实验结合同核(1H)COSY和异核(13C-1H)COSY确认了Qwhaic acid-3-O-glucuronic acid分子中所有13C和1H的归属.

关键词: 皂皮酸-3-氧-葡萄糖醛酸, HMBC, HOHAHA, 远程1H-13C相关, Relay信息

Abstract: HMBC is a sensitive method for determining long-range 1H-13C connectivity. It is suitable for conelating methyl protons with carbon atoms through two-and three-bond, especially.
HOHAHA provides relay information over all protons in spin coupling network.
In this paper HMBC and HOHAHA, in combination with 1H COSY and 13C-1H COSY have been used to unambiguously assign 13C and 1H resonances for Quillaic Acid-3-O-giucuronic acid.

Key words: Quillaic acid-3-O-glucuronic acid, HMBC, HOHAHA, long-range 1H-13C connectivity, relay information