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KMID : 0616120220530010016
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Korean Journal of Pharmacognosy
2022 Volume.53 No. 1 p.16 ~ p.21
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Diterpene Glycosides from the Aerial Parts of Inula britannica var. chinensis Regel
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Kim Dae-Keun
Kim Jun-Hyeong
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Abstract
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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.
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KEYWORD
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Inula britannica var. chinensis, Compositae, ent-kaurane type diterpene glycoside
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