Two new triterpenoid saponins from Ardisia crenata |
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| Authors: | D-L Liu N-L Wang X Zhang H Gao |
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| Institution: | 1. Department of Natural Products Chemistry , Shenyang Pharmaceutical University , Shenyang, 110016, China;2. Department of Natural Products Chemistry , Shenyang Pharmaceutical University , Shenyang, 110016, China;3. Shenzhen Research Center of Traditional Chinese Medicines &4. Natural Products , Shenzhen, 518057, China |
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| Abstract: | Two new triterpenoid saponins, ardisicrenoside K (1) and ardisicrenoside L (2), have been isolated from the roots of Ardisia crenata Sims. Their structures have been determined as 3β-O-{α-l-rhamnopyranosyl-(1 → 2)-β-d-glucopyranosyl-(1 → 4)-β-d-glucopyranosyl-(1 → 2)]-α-l-arabinopyranosyl}-13β,28-epoxy-16-oxo-30,30-dimethoxyoleanane and 3β-O-{β-d-xylopyranosyl-(1 → 2)-β-d-glucopyranosyl-(1 → 4)-β-d-glucopyranosyl-(1 → 2)]-α-l-arabinopyranosyl}-13β,28-epoxy-16α,20-dihydroxyoleanane by means of chemical evidences and spectral analysis. Their weak anti-fungal activity against the plant pathogenic fungus Pyricularia oryzae was evaluated in vitro. |
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| Keywords: | Ardisia crenata Sims Triterpenoid saponin Ardisicrenoside K Ardisicrenoside L Anti-fungal |
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