Triterpene glycosides of Astragalus and their genins.: LXVIII.: Cycloorbigenin C, a new cycloartane genin

被引：7
|
作者：
Mamedova, RP [1 ]
Agzamova, MA [1 ]
Isaev, MI [1 ]
机构：
[1] Uzbek Acad Sci, S Yu Yunusov Inst Chem Plant Substances, Tashkent 700135, Uzbekistan
来源：
CHEMISTRY OF NATURAL COMPOUNDS | 2003年 / 39卷 / 05期
关键词：
triterpenoids; cycloartanes; cycloorbigenin C; Astragalus; Leguminosae; PMR and C-13 NMR; J-modulation; 2D NMR : H-1-H-1 COSY; TOCSY; ROESY; HSQC; HMBC;
D O I：
10.1023/B:CONC.0000011122.41260.98
中图分类号：
R914 [药物化学];
学科分类号：
100701 ;
摘要：
The new triterpenoid cycloartane cycloorbigenin C, the structure of which is 23xi,24xi-cycloartan-3beta,6alpha,16beta,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 C-13 NMR spectra interpreted using J-modulation and the 2D NMR spectroscopies: H-1-H-1 COSY, TOCSY, ROESY, HSQC, and HMBC.
引用
收藏
页码：470 / 474
页数：5
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