Triterpene glycosides ofAstragalus and their genins. XVII. Cycloasgenin B fromAstragalus tashkendicus
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Abstract
The roots ofAstragalus tashkendicus Bge. have yielded a new triterpenoid — cycloasgenin B – the structure of which has been established on the basis of chemical transformations and spectral characteristics as (24R)-6α,11α,16β,24,25-pentahydroxycycloartan-3-one.
Keywords
Oxazoline TRITERPENE Glycoside Dimethyl Acetal Sodium Periodate Cyclic KetonePreview
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© Plenum Publishing Corporation 1985