74 トリテルペンにおけるINDOR法の応用 : friedelin関連トリテルペンのメチル基の帰属を中心として
スポンサーリンク
概要
- 論文の詳細を見る
(1) Homonuclear INDOR technique was applied to assignments of methyl resonances of friedelin and its related triterpenes in the presence of NMR shift reagent, Pr(FOD)_3. Thus the methyl signals of friedelin (Ia), epifriedelanol acetate (IIa), friedelanol acetate (IIIa), 16-ketofriedelane (IV), 16β-acetoxyfriedelane (V), 16α-acetoxyfriedelane (VI), shionone (VII), epishionol acetate (VIII), and shionol acetate (IX) were successfully assigned. In addition, D and E rings of friedelin (Ia) in chloroform solution were suggested to be in boat conformation. (2) Structures of pachysandienol-A (X) and -B (XI), new triterpenes isolated from Pachysandra terminalis SIEB. et ZUCC., were determined by chemical and spectroscopic methods. Their methyl resonances were also assigned.
- 天然有機化合物討論会の論文
- 1978-08-22
著者
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菊池 徹
富山医薬大・和漢研
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菊池 徹
Research Institute For Wakan-yaku (oriental Medicines) Toyama Medical And Pharmaceutical University
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横井 利夫
神戸学院大学薬学部薬化学講座
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丹羽 峰雄
Central Research Laboratory, Fujisawa Pharmaceutical Co., Ltd.
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新宮 徹朗
神院大・薬
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新宮 徹朗
神院大薬
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新宮 徹朗
京都大学薬学部
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丹羽 峰雄
Central Research Laboratory Fujisawa Pharmaceutical Co. Ltd.
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横井 利夫
神院大薬
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丹羽 峰雄
藤沢薬工
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菊池 徹
Research Institute for Wakan-Yaku (Oriental Medicines), Toyama Medical and Pharmaceutical University
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