Studies on the Constituents of Digitalis purpurea L. III. Gitostin, a New Cardiotonic Glycoside from Digitalis Seeds.
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概要
- 論文の詳細を見る
Of the unknown cardioglycosides contained in the seeds of Digitalis purpurea reported in the preceding paper, substance A-VIII was isolated in crystalline state. This substance occurs as a very bitter needle crystals, m. p. 252〜254° (Kofler, uncorr.) ; [α]^21_D-3.1°, C_<42>H_<66>O_<19>・2H_2O ; negative to the Keller-Kiliani reaction, sulfuric acid layer in carmine red, and positive to Legal and Raymond reactions ; U. V. λ^<EtOH>_<max> 218mμ (log ε 4.21). Its hydrolysis with 3.5% hydrochloric acid afforded dianhydrogitoxigenin and the sugar portion was found to be digitalose and glucose by paper partition chromatography. Determination of glucose by the Borel-Hostetteler-Devel method showed the presence of two moles. This substance was found to be a new glycoside, a triglycoside, of gitoxigenin series, and was named gitostin. A structure of gitoxigenin-glucosido-glucosido-digitaloside forgitostin as the gitoxigenin-series glycoside corresponding to odoroside-G was forwarded.
- 公益社団法人日本薬学会の論文
- 1957-04-20
著者
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岡野 淳二
Central Research Laboratory Daiichi Seiyaku Co. Ltd.
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三木 藤作
Exploratory Research Laboratories III, Daiichi Pharmaceutical Co., Ltd.,
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岡野 淳二
Yanagishima Research Laboratory, Daiichi Seiyaku Co., Ltd.
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傍士 和彦
Yanagishima Research Laboratory, Daiichi Seiyaku Co., Ltd.
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三木 藤作
Yanagishima Research Laboratory, Daiichi Seiyaku Co., Ltd.
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宮武 一夫
Yanagishima Research Laboratory, Daiichi Seiyaku Co., Ltd.
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宮武 一夫
Research Laboratory Daiichi Seiyaku Co. Ltd.
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三木 藤作
Exploratory Research Laboratories Iii Daiichi Pharmaceutical Co. Ltd.
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岡野 淳二
Yanagishima Research Laboratory Daiichi Seiyaku Co. Ltd.
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傍士 和彦
第一製薬株式会社
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