9 Flavoskyrinの構造について
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概要
- 論文の詳細を見る
Previously a structural formula (V) was proposed for flavoskyrin, a yellow pigment of Penicillium islandicum Sopp. NRRL 1175. In relation with the revised structure of rugulosin (I) and luteoskyrin (II), the structure of (-) flavoskyrin has been reexamined. Flavoskyrin has now been found to be a dimeric compound having a molecular formula, C_<30>H_<24>O_<10>. On treatment with thionyl chloride in pyridine (-) flavoskyrin is converted into (+) dianhydrorugulosin ((+) dichrysophonol (8, 8')). By the action of pyridine (-) flavoskyrin affords dianhydrorugulosin and (-) rugulosin. The synthetic compounds (VIII), (XII) and (XIII) which were used as the model compounds for flavoskyrin have now been proved by the Mass and MNR spectra to be dimers. The comparative studies using UV, IR, NMR and Mass spectra have led the new structure XVIa for flavoskyrin. The mechanism of dimerization reaction of the synthetic model compoumds has also been discussed.
- 天然有機化合物討論会の論文
- 1971-10-01
著者
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三川 潮
東大・薬
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柴田 承二
東大・薬
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荻原 幸夫
東大・薬
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妹尾 修次郎
塩野義研
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三川 潮
Faculty Of Pharmaceutical Sciences University Of Tokyo
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荻原 幸夫
Faculty Of Pharmaceutical Sciences Nagoya City University
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柴田 承二
Faculty Of Pharmaceutical Sciences University Of Tokyo:(present Address)meiji College Of Pharmacy
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柴田 承二
明治薬科大学
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三川 潮
東大 薬
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妹尾 修次郎
東大・薬
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