Triterpene glycosides from Astragalus and their genins. LXXXVII. Chemical transformation of cycloartanes. IX. Partial synthesis of cycloasalgenin

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作者
I. M. Isaev
D. A. Iskenderov
M. I. Isaev
机构
[1] Academy of Sciences of the Republic of Uzbekistan,S. Yu. Yunusov Institute of the Chemistry of Plant Substances
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Leguminosae; cycloartanes; cycloasalgenin; PMR; C NMR; DEPT spectra;
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摘要
The natural cycloartane triterpenoid cycloasalgenin, which is 20R,24S-epoxycycloartan-3β,6α,25-triol16-one, was partially synthesized in three steps starting from cyclosiversigenin. In addition to the desired product, its 17-epimer was synthesized. The analogous 17-epimer was also prepared from cycloadsurgenin.
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页码:407 / 411
页数:4
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