ニオイイリスの成分研究(第1報)地下部に含まれるC-Glucosylxanthoneの単離およびそれらの生合成
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概要
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Three C-glucosylxanthones, 1-hydroxy-3,5,6-trimethoxyxanthone-2-C-glucoside (8), 1,3,5,6-tetrahydroxyxanthone-2-C-glucoside (9) and isomangiferin (10), were isolated from the underground parts of Iris florentina L., besides mangiferin (2) and irisxanthone (3) which have been known as the components of this plant. In order to study the biosynthesis of 9 and 3,maclurin-(carbonyl-^<14>C) (11) was fed to I. florentina L. Labelled 11 was efficiently incorporated not only into 2 but also 9 and 3,and the radioactivity in 9 was largely localized in the aglycone moiety. These results indicate that 11 was incorporated into 9 without randomization and that 9 and 3,therefore, were biosynthesized via C-glucosylation of maclurin (11). In addition to C-glucosylxanthones, two acetophenones, piceol (6) and acetovanillone (7), were isolated together with sinapic acid and protocatechuic acid.
- 1981-12-25
著者
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井上 隆夫
星薬科大学
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藤田 正雄
星薬科大学
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藤田 正雄
Faculty Of Pharmaceutical Sciences:hoshi University
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藤田 正雄
星薬科大学薬学部:(現)株式会社ウチダ和漢薬研究開発室
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