Three triterpenoid saponins acylated with monoterpenic acid from Gymnocladus chinensis |
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| Authors: | Qi Wen Dan Yuan Ke-Hui Xie Tian-Zhi Cai |
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| Affiliation: | 1. State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Science, Peking University , Beijng, 100191, China;2. School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University , Shenyang, 110016, China;3. School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University , Shenyang, 110016, China;4. State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Science, Peking University , Beijng, 100191, China |
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| Abstract: | A new triterpenoid saponin acylated with monoterpenic acid, together with two known triterpenoid saponins, has been isolated from the fruit of Gymnocladus chinensis Baill. Their structures were elucidated as 2β,23-dihydroxy-3-O-α-L-rhamnopyranosyl-21-O-{(6S)-2-trans-2,6-dimethyl-6-O-3-O-(β-D-glucopyranosyl)-4-O-((6S)-2-trans-2,6-dimethyl-6-hydroxy-2,7-octadienoyl)-β-L-arabinopyranosyl]-2,7-octadienoyl}-acacic acid 28-O-β-D-xylopyranosyl-(1 → 3)-β-D-xylopyranosyl-(1 → 4)-α-L-rhamnopyranosyl-(1 → 2)-α-L-rhamnopyranosyl-(1 → 6)]-β-D-glucopyranosyl ester (1), gymnocladus saponin E (2), and gymnocladus saponin F2 (3). |
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| Keywords: | Gymnocladus chinensis triterpenoid saponins eight to nine sugar moieties |
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