Triterpene Glycosides of Astragalus and Their Genins. LXVIII. Cycloorbigenin C, a New Cycloartane Genin

被引：0
|
作者：
R. P. Mamedova
M. A. Agzamova
M. I. Isaev
机构：
[1] S. Yu. Yunusov Institute of the Chemistry of Plant Substances,Academy of Sciences of the Republic of Uzbekistan
[2] S. Yu. Yunusov Institute of the Chemistry of Plant Substances,Academy of Sciences of the Republic of Uzbekistan
来源：
Chemistry of Natural Compounds | 2003年 / 39卷
关键词：
triterpenoids; cycloartanes; cycloorbigenin C; Leguminosae; PMR and ; C NMR; J-modulation; 2D NMR: ; H-; H COSY, TOCSY, ROESY, HSQC, HMBC;
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学科分类号：
摘要：
The new triterpenoid cycloartane cycloorbigenin C, the structure of which is 23ξ,24ξ-cycloartan-3β,6α,16β,23,24,25-hexaol, was obtained from the aerial part of Astragalus orbiculatus Ledeb. (Leguminosae). The structure of cycloorbigenin C was proved using chemical transformations, IR spectroscopy, electron-impact mass spectrometry, and PMR and 13C NMR spectra interpreted using J-modulation and the 2D NMR spectroscopies: 1H-1H COSY, TOCSY, ROESY, HSQC, and HMBC.
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页码：470 / 474
页数：4
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