Chemical and Pharmaceutical Bulletin
Online ISSN : 1347-5223
Print ISSN : 0009-2363
ISSN-L : 0009-2363
Metabolic Products of Fungi. XVIII. On the Structure of Lumiluteoskyrin.
柴田 承二北川 勲
著者情報
ジャーナル フリー

1961 年 9 巻 5 号 p. 352-357

詳細
抄録
The structure of a photo-reaction product of luteoskyrin, designated lumiluteoskyrin, has been discussed. Lumiluteoskyrin, C30H20O12, dark purple crystals, m. p. above 360°, yielded a diacetate, C30H18O10 (OCOCH3)2, a tetraacetate, C30H16O6 (OCOCH3)4, and a hexa acetate, C30H14O6 (OCOCH3)6. On thermal degradation, lumiluteoskyrin gave islandicin and catenarin. On reduction with alkaline sodium dithionite, lumiluteoskyrin was not cleaved, while by the action of hydrochloric acid and zinc, it yielded islandicin. The positive magnesium acetate reaction and the ultraviolet and visible light absorption spectra showed that lumiluteoskyrin is a true quinone compound possessing a naphthazarin system in its molecule. On the basis of the chemical and spectral evidences, a structural formula (III) was proposed for lumiluteoskyrin and the photo-reaction mechanism was discussed.
著者関連情報
© The Pharmaceutical Society of Japan
前の記事 次の記事
feedback
Top