51 1-Indanone骨格を有するsesquiterpene,pterosin類のCDと立体配座
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概要
- 論文の詳細を見る
Pterosins and pterosides, 1-indanone derivatives isolated from bracken(Pteridium aquilinum var. latiusculum), and the derivatives exhibit CD Cotton effects associated with n→π transition of conjugated ketones in the range of 310-370nm. Snatzke's rule was applied to the compounds, which were shown in Fig 1 in octant type projection, and the conformations were discussed from the observation by the CD Cotton effects. The conformations of pterosin A type compounds having a hydroxymethyl group at the 2-position are affected by the intramolecular hydrogen bonding. In pterosin C and L type compounds bearring a hydroxyl group at the 3-position, the hydroxyl group exists in pseudoaxial conformation irrespective of the configuration at the 2-position. The results obtained by the compounds of the established stereochemistry by chemical methods were applied for the determination of the absolute configurations of pterosin D type compounds.
- 天然有機化合物討論会の論文
- 1978-08-22
著者
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義平 邦利
National Institute Of Hygienic Sciences
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義平 邦利
国立衛試
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名取 信策
国立衛試
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名取 信策
National Institute Of Hygienic Sciences:(present Address)meiji College Of Pharmacy
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福岡 正道
National Institute of Hygienic Sciences
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黒柳 正典
National Institute Of Hygienic Sciences
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黒柳 正典
国立衛試
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福岡 正道
国立衛試
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