波谱学杂志 ›› 2008, Vol. 25 ›› Issue (4): 541-548.

• 研究简报 • 上一篇    下一篇

没药中一呋喃倍半萜的核磁共振研究

杨国春1; 李占林1; 李文2; 华会明1*   

  1. (1.沈阳药科大学 中药学院, 辽宁 沈阳 110016;2.沈阳药科大学 药学院, 辽宁 沈阳 110016)
  • 收稿日期:2008-05-04 修回日期:2008-06-24 出版日期:2008-12-05 发布日期:2009-12-05
  • 通讯作者: 华会明

The Structure of a Furanosesquiterpenoid Extracted from Myrrh Elucidated by NMR Spectroscopy

YANG Guo-chun1; LI Zhan-lin1; LI Wen2; HUA Hui-ming1*   

  1. (1.School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, China; 2.School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China)
  • Received:2008-05-04 Revised:2008-06-24 Online:2008-12-05 Published:2009-12-05
  • Contact: Hua Hui-ming

摘要: 从没药氯仿提取物中分离得到一呋喃倍半萜类化合物:2-甲氧基-5-乙酰氧基呋喃吉马-1(10)E-烯-6-酮.通过1D NMR和2D NMR(1H-1H COSY,HSQC和HMBC)等技术确定了该化合物的结构,利用2D NMR技术对其核磁共振信号进行了全归属,修正了文献中的归属错误. 通过NOESY实验以及偶合常数的分析,确定了其结构中1,10位双键和甲氧基、乙酰氧基、 甲基等基团的相对构型.

关键词: NMR, 归属, 2D NMR, 没药, 呋喃倍半萜, 相对构型

Abstract: A furanosesquiterpenoid, 2-methoxy-5-acetoxy-furanogermacr-1(10)E-en-6- one was isolated from the CHCl3 extrct of myrrh. Its structure was established by its 1D and 2D NMR (i.e, 1H-1H COSY, HSQC and HMBC) spectra. The 1H and 13C chemical shifts of the compound were assigned. The relative stereochemistry of the 1, 10-double bond and that of the methoxyl, methyl, and acetoxy groups were determined by NOESY experiments and analyses of the coupling constants.

Key words: NMR, chemical shift assignment, 2D NMR, myrrh, furanosesquiterpenoid, relative stereochemistry

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