New Steroidal Saponins from the Leaves of Yucca elephantipes |
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| Authors: | Ying Zhang Chong‐Ren Yang Ying‐Jun Zhang |
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| Institution: | 1. State Key Laboratory of Phytochemistry and Plant Resources of West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, P.?R. China, (phone/fax: +86‐871‐5223235);2. College of Chinese Medicine, Jilin Agricultural Science and Technology College, Jilin 132101, P.?R. China;3. Weihe Biotech Research and Development Center, Yuxi 653101, P.?R. China |
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| Abstract: | Two new spirostanol saponins, namely elephanosides G and H ( 1 and 2 , resp.) were isolated from the leaves of Yucca elephantipes (Agavaceae), together with the two known furostanol saponins 3 and 4 and the six known flavonoid O‐ and C‐glycosides 5 – 10 . The new structures were elucidated as (3β,25S)‐spirost‐5‐en‐3‐yl O‐β‐D ‐glucopyranosyl‐(1→3)‐O‐β‐D ‐glucopyranosyl‐(1→4)‐β‐D ‐galactopyranoside ( 1 ) and (3β,5β,25R)‐3‐(2‐O‐β‐D ‐glucopyranosyl‐β‐D ‐galactopyranosyl)oxy]spirostan‐12‐one ( 2 ) on the basis of detailed spectroscopic analysis and acidic hydrolysis. |
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| Keywords: | Yucca elephantipes Steroidal saponins Elephanosides G and H Saponins |
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