A novel kaempferol triglycoside from flower buds of Panax quinquefolium
作者:ChangDa Liu、Jing Chen、JinHui Wang
DOI:10.1007/s10600-010-9500-1
日期:2009.11
Three kaempferol glycosides were isolated from the flower buds of Panax quinquefolium L. together with kaempferol (1). By means of chemical and spectroscopic methods (NMR, ESI-MS, 2D NMR), their structures were established as trifolin (2), panasenoside (3), and kaempferol-3-O-β-D-glucosyl(1→2)-β-D-galactoside-7-O-α-L-rhamnoside (4).Compound 4 is a new compound.
A New Acylated Flavonol Glycoside and Antioxidant Effects of <i>Hedyotis diffusa</i>
作者:Chai-Ming Lu、Jenq-Jer Yang、Phen-Yuh Wang、Chun-Ching Lin
DOI:10.1055/s-2000-8544
日期:——
of Hedyotis diffusa Willd., led to the isolation of a new acyl flavonol di-glycoside which was characterized as kaempferol 3-O[2"-O-(E-6'"-O-feruloyl)-beta-D-glucopyranosyl]-beta-D-galactop yranoside by spectral and chemical methods from the methanolic extract. In addition, three known flavonol glycosides and six known iridoid glycosides were also obtained. The above-mentioned glycosides were tested