Triterpene Glycosides of Astragalus and Their Genins. LXX. Orbicoside, the First Lanostane Glycoside from Astragalus Plants |
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| Authors: | R. P. Mamedova M. A. Agzamova M. I. Isaev |
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| Affiliation: | (1) Academy of Sciences of the Republic of Uzbekistan, S. Yu. Yunusov Institute of the Chemistry of Plant Substances, Tashkent |
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| Abstract: | Orbicoside, a new lanostane glycoside and the first from plants of the Astragalus genus, was isolated from the aerial organs of Astragalus orbiculatus Ledeb. (Leguminosae). It has the structure 23 ,24-lanost-9(11)-en- 3 ,7,16,19,23,24,25-heptaol 3-O--D-xylopyranoside. The structure of orbicoside was established using PMR and 13C NMR, which were interpreted using DEPT and 2D NMR spectroscopies 1H-1H COSY, HSQC, and HMBC. |
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| Keywords: | lanostanoids triterpenoids orbicoside Astragalus Leguminosae PMR and 13C NMR spectra DEPT 2D NMR: 1H-1H COSY, HSQC, HMBC |
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