波谱学杂志 ›› 2007, Vol. 24 ›› Issue (2): 141-146.

• 研究论文 • 上一篇    下一篇

2D NMR对栌菊木中的一个倍半萜内酯进行结构解析

胡晓玉;吴新卫;梅娜;周乐   

  1. 1.西北农林科技大学,陕西 杨凌 712100;2.中国科学院 成都生物研究所,四川 成都 610041
  • 收稿日期:2006-09-05 修回日期:2006-11-29 出版日期:2007-06-05 发布日期:2009-12-05
  • 通讯作者: 周乐

Structure Determination of a Sesquiterpene Lactone Isolated from Nouelia Insignis Franch by 2D NMR

HU Xiao-yu;WU Xin-wei;MEI Na;ZHOU Le   

  1. 1.Northwest A&F University, Yangling 712100, China; 2.Chengdu Institute of Biology, the Chinese Academy of Sciences, Chengdu 610041, China
  • Received:2006-09-05 Revised:2006-11-29 Online:2007-06-05 Published:2009-12-05
  • Contact: Zhou Le

摘要: 通过核磁共振对一个首次从菊科单种属植物-栌菊木中分离得到的乌药烷型倍半萜内酯-8β, 9-dihydro-onoseriolide进行了结构解析,通过2D NMR (HSQC,HMBC,NOESY )首次对该化合物的碳和氢质子信号进行全归属;并证实其结构中的 H-1,H-2 互为颠倒,纠正了文献报道中的错误,该研究对乌药烷骨架倍半萜内酯的结构鉴定提供了光谱学依据.

关键词: NMR, 化学位移归属, 乌药烷型, 栌菊木

Abstract: A sesquiterpene lactone was isolated from Nouelia insignis Franch, and its structure was elucidated (compound 1)by 2D NMR to be 8β, 9-dihydro-onoseriolide. Complete assignment of the 1H and 13C chemical shifts for the compound was obtained. The assignments of H-1 and H-2 of the compound previously reported were found incorrect, and the correct assignments were given. The results of this study may have some practical significance for the structural elucidation of onoseriolide sesquiterpene lactones.

Key words: NMR, chemical shift assignment, onoseriolide, Nouelia insignis Franch