Abstract
Two new furostanol saponins were isolated from the fruits of Tribulus terrestris L. Their structures were established as 26-O-beta-D-glucopyranosyl-(25S)-5alpha-furost-20(22)-en-3beta,26-diol-3-O-alpha-L-rhamnopyranosyl-(1 --> 2)-[beta-D-glucopyranosyl-(1 --> 4)]-beta-D-galactopyranoside (1) and 26-O-beta-D-glucopyranosyl-(25S)-5alpha-furost-20(22)-en-12-one-3beta,26-diol-3-O-beta-D-galactopyranosyl-(1 --> 2)-beta-D-glucopyranosyl-(1 --> 4)-beta-D-galactopyranoside (2) on the basis of spectroscopic data as well as chemical evidence.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Drugs, Chinese Herbal / chemistry
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Drugs, Chinese Herbal / isolation & purification*
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Fruit / chemistry
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Molecular Structure
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Nuclear Magnetic Resonance, Biomolecular
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Saponins / chemistry
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Saponins / isolation & purification*
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Stereoisomerism
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Steroids / chemistry
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Steroids / isolation & purification*
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Tribulus / chemistry*
Substances
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26-O-beta-D-glucopyranosyl-(25S)-5-furost-20(22)-en-12-one-3beta,26-diol-3-O-beta-D-galactopyranosyl-(1-2)-beta-D-glucopyranosyl-(1-4)-beta-D-galactopyranoside
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26-O-beta-D-glucopyranosyl-(25S)-5-furost-20(22)-en-3beta,26-diol-3-O-L-rhamnopyranosyl-(1-2)-(beta-D-glucopyranosyl-(1-4))-beta-D-galactopyranoside
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Drugs, Chinese Herbal
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Saponins
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Steroids