• Title/Summary/Keyword: ent-kaurane type diterpene glycoside

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Diterpene Glycosides from the Aerial Parts of Inula britannica var. chinensis Regel (금불초 지상부의 Diterpene 배당체 성분)

  • Kim, Dae Keun;Kim, Jun Hyeong
    • Korean Journal of Pharmacognosy
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    • v.53 no.1
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    • pp.16-20
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    • 2022
  • Five ent-kaurane type diterpene glycosides were isolated from the aerial parts of Inula britannica var. chinensis Regel (Compositae) through repeated column chromatography. Their chemical structures were elucidated as 16β-H-ent-kauran-19-oic acid-19-O-β-D-glucopyranoside (1), 16β-hydroxy-17-acetoxy-ent-kauran-19-oic acid-19-O-β-D-glucopyranoside (2), 16β,17-dihydroxy-ent-kauran-19-oic acid-19-O-β-D-glucopyranoside (3), 16α,17-dihydroxy-ent-kauran-19-oic acid-19-O-β-D-glucopyranoside (4) and 17-O-β-D-glucopyranosyl-16β-H-ent-kauran-19-oic acid-19-O-β-D-glucopyranoside (5), respectively, by spectroscopic analysis. Among these compounds, 1-4 were isolated for the first time from this plant.