Studies on the Constituents of Luffa acutangula ROXB. II. Structures of Acutosides H and I, Oleanolic Acid Saponins Isolated from the Seed
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概要
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From the seeds of Luffa acutangula ROXB. (Cucurbitaceae), two 3,28-O-bisdesmosidic heptaglycosides of oleanolic acid, named acutosides H and I, were isolated and their structures were elucidated. Acutosides H and I have the same prosapogenin structure, oleanolic acid 3-O-[O-α-L-arabinopyranosyl-(1→3)-β-D-glucopyranosyluronic acid] and differ in the structures of the ester-linked sugar moieties. Acutoside H is a 28-O-[O-β-D-xylopyranosyl-(1→3)-O-β-D-xylopyranosyl-(1→4)-[O-β-D-xylopyranosyl(1→3)]-O-α-L-rhamopyranosyl-(1→2)-α-L-arabinopyranosyl] ester, and acutoside I is a 28-O-[O-α-L-arabinopyranosyl-(1→3)-O-β-D-xylopyranosyl-(1→4)-[O-β-D-xylopyranosyl-(1→3)]-O-α-L-rhamnopyranosyl-(1→2)-α-L-arabinopyranosyl] ester.
- 1991-04-25
著者
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長尾 常敦
福岡大
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岡部 光
Faculty Of Pharmaceutical Sciences Fukuoka University
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岡部 光
福岡大学
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Okabe Hikaru
福岡大学 薬学部
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田中 龍一郎
Faculty of Pharmaceutical Sciences, Setsunan University
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長尾 常敦
Faculty of Pharmaceutical Sciences, Fukuoka University
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田中 龍一郎
Faculty Of Pharmaceutical Sciences Fukuoka University
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