| 选择性远程DEPT技术用于吡咯里西啶类生物碱的结构测定和核磁共振研究 |
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| 引用本文： | 缪振春,蔡定国.选择性远程DEPT技术用于吡咯里西啶类生物碱的结构测定和核磁共振研究[J].有机化学,1992,12(5):503-509. |
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| 作者姓名： | 缪振春 蔡定国 |
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| 作者单位： | 军事医学科学院毒物药物研究所;海军药学专科中心 |
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| 摘 要： | 本文从峨眉千里光中分得二个吡咯里西啶类生物碱.经测定,一个为阔叶千里光碱,另一个为新阔叶千里光碱.采用选择性远程^13CDEPT技术对这二个化合物的结构及其^1H和^13CNMR谱峰归属作了研究.
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| 关 键 词： | 生物碱 碳13核磁共振谱法 质子磁共振谱法 吡咯里西啶 阔叶千里光碱 新阔叶千里光碱 选择性远程DEPT |
Application of selective long-range DEPT technique to NMR structural elucidation of pyrrolizidine alkaloids |
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| Abstract: | Two pyrrolizidine alkaloids platyphylline (I) and neoplatyphylline (II) were isolated from Senecio fuberi Hensl. A general procedure for the complete assignment of 1H and 13C NMR spectra of the two compounds is presented. Selective long-range 13C DEPT NMR technique provides unambiguous information for spectral assignment and structural elucidation of the complex compounds On this basis, previous assignment of 13C signals of I and II have been revised. The results should be useful in structural determination of new pyrrolizidine alkaloids. |
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| Keywords: | ALKALOID C13 NMR SPECTROMETRY PROTON MAGNETIC RESONANCE SPECTROMETRY PLATYPHYLLINE |
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