Dammarane-saponins of sanchi-ginseng, roots of Panax notoginseng (Burk.) F.H. Chen (araliaceae): Structures of new saponins, notoginsenosides-R1 and -R2, and identification of ginsenosides-Rg2 and -Rh1.
抄録
From Sanchi-Ginseng, roots of Panax notoginseng cultivated in Yunnan, China, two new dammarane-saponins named notoginsenosides-R1 (5) and -R2 (7S) were isolated by means of reverse phase high performance liquid chromatography. The structures of these saponins were established as 20 (S)-protopanaxatriol 6-[O-β-D-xylopyranosyl-(1→2)-β-D-glucopyranosyl]-20-O-β-D-glucopyranoside (5) and 20 (S)-protopanaxatriol 6-O-β-D-xylopyranosyl (1→2)-β-D-glucopyranoside (7S), respectively, mainly by 13C NMR spectroscopy and mass spectrometry. In connection with this study, assignments of carbon signals of ginsenoside-Rf (11), a minor saponin of Ginseng roots, were substantiated by the application of selective deuteration of the sugar moiety as reported by Stuart et al. Besides these saponins, two known saponins, ginsenosides-Rh1 (12) and -Rg2 (13) which have previously been isolated from Ginseng roots, were also isolated and identified.
収録刊行物
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- CHEMICAL & PHARMACEUTICAL BULLETIN
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CHEMICAL & PHARMACEUTICAL BULLETIN 29 (10), 2844-2850, 1981
公益社団法人 日本薬学会
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詳細情報 詳細情報について
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- CRID
- 1390282679140648832
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- NII論文ID
- 130003768831
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- COI
- 1:CAS:528:DyaL38Xhtl2lsLk%3D
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- ISSN
- 13475223
- 00092363
- http://id.crossref.org/issn/00092363
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可