Studies on the Constituents of Aster scaber THUNB. III. Structures of Scaberosides B_7,B_8 and B_9,Minor Oleanolic Acid Glycosides Isolated from the Root
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概要
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Three new oleanolic acid 3,28-O-bisdesmosides, scaberosides B_7,B_8 and B_9,were isolated as minor saponins from the root of Aster scaber THUNB. (Compositae), and their structures were determined based on spectral and chemical evidence as follows. Scaberoside B_7 is 3-O-β-D-glucopyranosyluronic acid oleanolic acid 28-{O-β-D-apiofuranosyl-(1→3)-[O-β-D-xylopyranosyl-(1→4)]-O-α-L-rhamnopyranosyl-(1→2)-α-L-arabinopyranosyl} ester, scaberoside B_8,3-O-β-D-glucopyranosyl oleanolic acid 28-[O-β-D-xylopyranosyl-(1→4)-O-α-L-rhamnopyranosyl-(1→2)-α-L-arabinopyranosyl] ester, and scaberoside B_9,3-O-β-D-glucopyranosyluronic acid oleanolic acid 28-{O-α-L-rhamnopyranosyl-(1→2)-[O-β-D-xylopyranosyl-(1→6)-β-D-glucopyranosyl} ester. Scaberosides B_7 and B_9 were obtained as their methyl esters.
- 公益社団法人日本薬学会の論文
- 1992-04-25
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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長尾 常敦
Faculty of Pharmaceutical Sciences, Fukuoka University
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