PHENOLIC CONSTITUENTS OF GLYCYRRHIZA SPECIES .14. VARIATIONS IN THE CHEMICAL-SHIFT OF THE 5-HYDROXYL PROTON OF ISOFLAVONES - 2 ISOFLAVONES FROM LICORICE

被引:16
|
作者
FUKAI, T [1 ]
NISHIZAWA, J [1 ]
NOMURA, T [1 ]
机构
[1] TOHO UNIV,FAC PHARMACEUT SCI,FUNABASHI,CHIBA 274,JAPAN
关键词
GLYCYRRHIZA URALENSIS; LEGUMINOSAE; LICORICE; KANZOH; PRENYLATED ISOFLAVONE; KANZONOLS K AND L; H-1; NMR;
D O I
10.1016/S0031-9422(00)97042-0
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
H-1 NMR examination of 6- or 8-prenylated isoflavones has shown that the location of the prenyl side chain on the A ring can be deduced from the chemical shift of the 5-hydroxyl proton. The effects of B ring substituents and methylation of the 7-hydroxyl group on the 5-hydroxyl signal, and the application of this technique to the identification of two prenylated isoflavones, kanzonols K and L, isolated from Glycyrrhiza uralensis are also discussed.
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页码:225 / 228
页数:4
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