• Title/Summary/Keyword: two new oleanolic acid saponins

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Saponins from the Fructus of Kochia scoparia

  • Whang, Wan-Kyunn;Hahn, Dug-Ryong
    • Archives of Pharmacal Research
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    • v.14 no.2
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    • pp.176-180
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    • 1991
  • Two new triterpenoidal saponins B(1) and C(2) were isolated from the fructus of Kochia scoparia. On the basis of chemico-spectral evidences, the structures of 1 and 2 were elucidated as oleanolic acid 3-O-$\beta$-D-ribopyranosyl-(1$\rightarrow$2)-.betha.-D-glucuronopyranoside and 3-O-$\beta$-D-xylopyranosyl-(1$\rightarrow$3)-$\beta$-D-glucuronopyranosyl-olean-12-en-28-O-$\beta$-D-glucopyranosyl ester, respectively.

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Aromatic Compounds and Tritepenoidal Saponins from Clematis koreana var. umbrosa

  • Whang, Wan-Kyunn
    • Archives of Pharmacal Research
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    • v.17 no.1
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    • pp.5-10
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    • 1994
  • From the methanolic extract of aerial parts of Clematis koreana var. umbrosa, one new triterpenoidal saponin, 3-O-${\beta}$-D-xylopyranosyl(1-3)-${\alpha}$-L-arabinopyranosyl oleanolic acid 28-O-${\alpha}$-L-rhamnopyranosyl(1-4)-${\beta}$-glucopyranosyl(1-6)-${\beta}$-glucopyranosyl ESTER, along with five known aromatic compounds and two known triterpenoidal saponins were isolated.

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Triterpenoid Saponins from the Roots of Caragana sinica

  • Lee, Yong-Bok;Yoo, Seung-Jo;Kim, Ju-Sun;Kang, Sam-Sik
    • Archives of Pharmacal Research
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    • v.15 no.1
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    • pp.62-68
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    • 1992
  • From the roots of Caragana sinica (Buc'hoz) Rehder (Leguminosae), a new saponin named caraganoside A was isolated and elucidated as 3-0-$\beta$-D-xylopyranosyl (1$\rightarrow$2)-[$\beta$-D-glucopyranosyl (1$\rightarrow$3)]-$\alpha$-L-arabinopyranosyl oleanolic acid 28-O-[$\beta$-D-glucopyranosyl ester by means of chemical and spectral studies. Kalopanax-saponin F, hemsloside Ma3 and araloside A were also isolated and characterized. The former two compounds were separated as their methylesters.

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