Studies on the Constituents of Gentiana Species. II A New Triterpenoid, and (S)-(+)- and (R)-(-)-Gentiolactones from Gentiana lutea
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概要
- 論文の詳細を見る
A new triterpenoid, 12-ursene-3β, 11α-diol 3-ο-palmitate (1), has been isolated from the rhizomes and roots of Gentiana lutea, together with the artificial diene derivative, 9 (11), 12-ursadien-3β-ol 3-ο-palmitate (1a) and five known compounds (3-7). Their structures were established on the basis of spectral analysis. In addition,(±)-gentiolactone [(±)-2], isolated from this plant, was successfully separated into its enantiomers [(+)-2, (-)-2]for the first time, and the absolute configurations at C-9 of (+)-2, (-)-2 were assigned as S and R, respectively, from the optical rotations and the circular dichroism (CD) spectral data.
- 社団法人日本薬学会の論文
- 2003-07-01
著者
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YAOITA Yasunori
Tohoku Pharmaceutical University
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KAKUDA Rie
Tohoku Pharmaceutical University
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MACHIDA Koichi
Tohoku Pharmaceutical University
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KIKUCHI Masao
Tohoku Pharmaceutical University
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Kakuda Rie
東北薬科大学
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Kikuchi M
東北薬科大学
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KIKUCHI Masafumi
Tohoku Pharmaceutical University
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Kikuchi Masao
Tohoku College Of Pharmacy
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Machida Koichi
Tohoku College Of Pharmacy
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Yaoita Y
Tohoku Pharmaceutical University
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Yaoita Yasunori
Tohoku College Of Pharmacy
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Kikuchi Tomoyuki
Tohoku Pharmaceutical University
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