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Studies on the Constituents of the Dioscorea tokoro Rhizome
https://showa.repo.nii.ac.jp/records/2997
https://showa.repo.nii.ac.jp/records/299777bc2bae-5422-4511-ab0d-0178138c67dd
名前 / ファイル | ライセンス | アクション |
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S31_151.pdf (317.9 kB)
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Item type | 学内発行雑誌 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2019-08-13 | |||||
タイトル | ||||||
タイトル | Studies on the Constituents of the Dioscorea tokoro Rhizome | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ | departmental bulletin paper | |||||
著者 |
HIRAI, Yasuaki
× HIRAI, Yasuaki |
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書誌情報 |
The Showa University journal of medical sciences 巻 31, 号 2, p. 151-158, 発行日 2019-06 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The rhizome of Dioscorea tokoro has been used in China to alleviate the pain of rheumatic disorders of the knees and hips, but the active component has not been clarified. In order to determine its pharmacological activity, we isolated and characterized the structure of the constituents of the Dioscorea tokoro rhizome by means of column chromatography and spectral analysis. As a result, two new furostanol saponins, protoyononin (D8) and protocompound x(D12), were isolated from the Dioscorea tokoro rhizome, along with ten known spirostanol and furostanol derivatives, namely, dioscin, gracillin, yononin, tokorogenin, tokoronin, compound x, protoyonogenin, protodioscin, protogracillin and prototokoronin. The structures of D8 and D12 were determined based on chemical and spectral methods and characterized as 26-O-β-D-glucopyranosyl (25R)-2β,3α,22ξ,26-tetrahydroxyfurost-2-O-α-L-arabinopyranside (protoyononin) and 26-O-β-D-glucopyranosyl (25R)-1β,2β,3α,22ξ,26-pentahydroxyfurost-1-O-β-D-glucopyranside (protocompound x). | |||||
DOI | ||||||
関連識別子 | 10.15369/sujms.31.151 | |||||
出版者 | ||||||
出版者 | Showa University Society | |||||
ISSN | ||||||
収録物識別子 | 0915-6380 | |||||
著者版フラグ | ||||||
出版タイプ | VoR |