| HMQC-TOCSY技术在植物环肽和配糖体中的应用 |
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| 引用本文： | 滕荣伟,王德祖,李朝明,丁中涛,杨崇仁.HMQC-TOCSY技术在植物环肽和配糖体中的应用[J].波谱学杂志,1999,16(4):295-301. |
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| 作者姓名： | 滕荣伟 王德祖 李朝明 丁中涛 杨崇仁 |
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| 作者单位： | 1. 中国科学院昆明植物研究所, 昆明 650204;2. 云南大学化学系, 昆明 650091 |
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| 基金项目： | 中科院昆明植物所植物化学开放实验室资助 |
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| 摘 要： | 核磁共振HMQC-TOCSY二维技术可在氢谱方向和碳谱方向分别得到独立的自旋系统内氢核和碳核的全相关信息.该技术对于分子内具有多个自旋系统的植物环肽和配糖体的结构解析尤为适用.本文以环肽annosquamosin A和三萜皂甙prostratoside A为例说明该技术在这两类化合物中的应用.
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| 关 键 词： | HMQC-TOCSY 植物环肽 配糖体 AnnosquamosinA ProstratosideA |
| 收稿时间： | 1999-03-19 |
THE APPLICATION OF HMQC-TOCSY TO THE PLANT GLYCOSIDES AND PLANT CYCLOPEPTIDES |
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| Teng Rongwei,Wang Dezu,Li Chaoming,Ding Zhongtao,Yang Chongren.THE APPLICATION OF HMQC-TOCSY TO THE PLANT GLYCOSIDES AND PLANT CYCLOPEPTIDES[J].Chinese Journal of Magnetic Resonance,1999,16(4):295-301. |
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| Authors: | Teng Rongwei Wang Dezu Li Chaoming Ding Zhongtao Yang Chongren |
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| Institution: | 1. Kunming Institute of Botany, The Chinese Academic of Sciences, Kunming 650204;2. Yunnan University, Department of Chemistry, Kunming 6500091 |
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| Abstract: | HMQC-TOCSY experiment is a useful 2D NMR technique for elucidating structures of organic molecules that possess independent spin systems. From HMQC-TOCSY spectrum, we can obtain information of all the proton connectivities in the F\-2 dimension and information of the carbon connectivity in the F\-1 dimension for a given spin system, so the chemical shifts of both proton and carbon can be simultaneously assigned. In this paper, two examples, annosquamosin A, which is a cyclopeptide, and prostratoside A, which is a triterpenoidal saponin, are given to demonstrate the application of this technique to the natural products. |
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| Keywords: | HMQC-TOCSY Annosquamosin A Prostratoside A |
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