波谱学杂志 ›› 2005, Vol. 22 ›› Issue (2): 155-162.

• 研究论文 • 上一篇    下一篇

Lasiodonin Acetonide的NMR数据解析

  

  1. 1.郑州大学 化学系,河南 郑州 450052;2.河南省科学院 天然产物重点实验室,河南 郑州 450002
  • 收稿日期:2004-11-15 修回日期:2004-12-14 出版日期:2005-06-05 发布日期:2005-06-05

An NMR Study of Lasiodonin Acetonide

  1. 1.Department of Chemistry,Zhengzhou University,Zhengzhou 450052, China; 
    2.Key Laboratory of Natural Products,Henan Academy of Science,Zhengzhou 450002, China
  • Received:2004-11-15 Revised:2004-12-14 Online:2005-06-05 Published:2005-06-05

摘要:

对lasiodonin acetonide进行了1H和13C NMR检测,参考lasiodonin, maoecrystal T, wikstroemioidin B和rabdocoetsin A的1H、13C NMR数据,通过DEPT和1H-1H COSY、HSQC、HMBC等2D NMR技术对该化合物所有的1H和13C NMR信号进行了全归属和详细解析.

关键词: NMR, 归属, 2D NMR, lasiodonin acetonide

Abstract:

A new diterpene,lasiodonin acetonide,was isolated from Chinese medicinal herb Rabdosia rubescens (Hems L.). Referring to the 1H and 13C NMR spectra of lasiodonin,maoecrystal T,wikstroemioidin B and rabdocoetsin A,its structure was determined to be  1α,6β,7β,11β-tetrahydroxy-cyclic,1,11-(1-methyl- ethylidene acetal)-7,20-epoxy- Kaur-16-en-15-one by 1D (1H,13C NMR and DEPT) and 2D (1H-1H COSY,HMQC and HMBC) NMR techniques.

Key words: NMR, assignments, 2D NMR, lasiodonin acetonide

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