Lupane-triterpene glycosides from the leaves of Acanthopanax gracilistylus |
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Authors: | Yook Chang-Soo Liu Xiang-Qian Chang Seung-Yeup Park Sang-Yong Nohara Toshihiro |
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Institution: | College of Pharmacy, Kyung-Hee University, Seoul, Korea. yookcs@khu.ac.kr |
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Abstract: | A novel lupane-triterpene glycoside, called wujiapioside B (1), was isolated from the leaves of Acanthopanax gracilistylus (Araliaceae) together with three known lupane-triterpene glycosides, acankoreoside C (2), acantrifoside A (3) and 3-epibetulinic acid 28-O-alpha-L-rhamnopyranosyl-(1-->4)-beta-D-glucopyranosyl-(1-->6)-beta-D-glucopyranosyl ester (4). Based on spectroscopic data, the chemical structure of 1 was determined as 3alpha,23-dihydroxy-lup-20(29)-en-28-oic acid 28-O-alpha-L-rhamnopyranosyl-(1-->4)-beta-D-glucopyranosyl-(1-->6)-beta-D-glucopyranosyl ester. Compounds 2-3 were obtained for the first time from this plant and compound 4 has not been isolated from Acanthopanax genus yet. |
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