波谱学杂志 ›› 2004, Vol. 21 ›› Issue (3): 323-329.

• 研究论文 • 上一篇    下一篇

中国南海海绵中19-methoxy-scalarin立体构型的确定

李敏一1,李林1,邓志威1*,邱彦2,林文翰2*   

  1. 1.北京师范大学 分析测试中心,北京 100875;  2.北京大学 天然药物及仿生药物国家重点实验室,北京 100083
  • 收稿日期:2004-02-27 修回日期:2004-03-24 出版日期:2004-09-05 发布日期:2004-09-05

NMR DETERMINATION OF  THE CONFIGURATION OF 19-METHOXY-SCALARIN ISOLATED FROM HYRTIOS ERECTUS

 LI Min-Y1i, LI Lin,1 DENG Zhi-Wei1*, QIU Yan2, LIN Wen-Han2*   

  1. 1.Analytical & Testing Center, Beijing Normal University, Beijing 100875,China;
    2.State Key Laboratory of Natural and Biomimetic drugs, Beijing University, Beijing 100083,China
  • Received:2004-02-27 Revised:2004-03-24 Online:2004-09-05 Published:2004-09-05

摘要:

对中国南海海绵中的新化合物19-methoxy-scalarin进行1H和13C NMR谱的全归属, 并运用“激发雕刻”技术,利用1D GOESY实验确定该化合物立体构型。实验结果亦表明1D GOESY实验选择性好,提供的信息更加直观、清晰,是化合物立体结构确定的好方法。

关键词: 核磁共振, 南海海绵, 19-methoxy-scalarin, GOESY,  , 激发雕刻

Abstract:

A new diterpenoid, 19-methoxy-scalarin, was isolated from marine sponge Hyrtios erectus. Its structure was determined by 1D and 2D NMR spectroscopy. In combination with the “excitation sculpting” technique, 1D GOESY was used for its configuration determination. The experimental results show that, compared to the commonly used NOE difference method, 1D GOESY provides a more direct and easy way for configuration determination.

Key words: NMR, Hyrtios erectus, 19-methoxy-scalarin, GOESY, excitation sculpting

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