Ebenaceae extractives. Part III. Binaphthaquinones from Diospyros species
作者:A. L. Fallas、R. H. Thomson
DOI:10.1039/j39680002279
日期:——
Diospyrin and isodiospyrin have been isolated from the bark of Diospyros mespiliformis. Isodiospyrin was also found in the bark and wood of D. virginiana. Isodiospyrin is optically active and, like diospyrin, is an unsymmetrical dimer of 7-methyljuglone, the two naphthaquinone moieties being coupled at C-6 and C-8′. The bark of D. elliptifolia contains betulin, lupeol, plumbagin (2-methyljuglone),
从柿(Diospyros mespiliformis)的树皮中分离出了薯and和异嘧啶。在弗吉尼亚丁香(D. virginiana)的树皮和木材中也发现了异嘧啶。异嘧啶具有光学活性,并且与薯精一样,是7-甲基ju酮的不对称二聚体,两个萘醌部分在C-6和C-8'处偶联。D. elliptifolia的树皮中含有桦木素,羽扇豆酚,羽扇豆蛋白(2-甲基juglone)和另一种二聚体Elliptinone,其与薯os甙和异薯py甙同分异构。Elliptinone具有6,6'-双酚苄青霉素的结构。