波谱学杂志 ›› 2005, Vol. 22 ›› Issue (3): 315-319.

• 研究简报 • 上一篇    下一篇

木果楝中Xyloccensin K的NMR研究

  

  1. 中国科学院南海海洋研究所,广东省海洋药物重点实验室,广东 广州 510301
  • 收稿日期:2005-04-11 修回日期:2005-06-01 出版日期:2005-09-05 发布日期:2005-09-05
  • 基金资助:

    中国科学院知识创新工程项目 (KZCX3-SW-216).

Xyloccensin K Extracted from Xylocarpus Granatum Studied by NMR Spectroscopy

  1. Guangdong Key Laboratory of Marine Materia Medica,South China Sea Institute of Oceanology,Chinese Academy of Sciences,  Guangzhou 510301,China
  • Received:2005-04-11 Revised:2005-06-01 Online:2005-09-05 Published:2005-09-05
  • Supported by:

    中国科学院知识创新工程项目 (KZCX3-SW-216).

摘要:

从红树植物木果楝的果实中分离并鉴定了2个limonoid 类化合物Xyloccensin K和 6-acetoxycedrodrorin,应用高分辨NMR 技术对Xyloccensin K 的1H 和13C NMR 数据进行了准确的归属,并纠正了文献中部分碳氢信号归属的错误.

关键词: limonoid , 木果楝, 归属, NMR, 2D NMR

Abstract:

Two limonoid compounds, xyloccensin K and 6-acetoxycedrodrorin, were isolated from the fruit of xylocarpus granatum. Their structures were elucidated by 1D and 2D NMR spectroscopy. It was shown that previous chemical shift assignment for some of the 1H and 13C signals of xyloccensin K is incorrect. Correction was made for the incorrect assignment.

Key words: NMR, limonoid, xyloccensin K,  xylocarpus granatum, chemical shift assignment

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