A new flavonol glycoside from the aerial parts of <i>Epimedium koreanum</i> Nakai
作者:Fubo Han、Ik-Soo Lee
DOI:10.1080/14786419.2016.1239092
日期:2017.2.1
A new prenylated flavonol glycoside (1) was isolated from a 95% methanol extract of the dried and powdered aerial parts of Epimedium koreanum Nakai (Herba Epimedii), along with seven previously known flavonoids (2–8). The chemical structure of the new compound (1) was established to be 5-hydroxy-4′-methoxy-8-(2-hydroxy-3-methyl-3-butenyl)flavone 3-O-α-l-rhamnopyranosyl-7-O-β-D-gluco pyranoside on the
一种新的异戊烯化黄酮醇苷(1)从的干燥和粉状的地上部分的95%甲醇提取物中分离淫羊藿中井(淫羊藿),用七种先前已知的黄酮类化合物(沿2 - 8)。新化合物的(化学结构1)成立为5-羟基-4'-甲氧基- 8-(2-羟基-3-甲基-3-丁烯基)黄酮3- ö -α-升-rhamnopyranosyl -7- -基于光谱法的O -β-D-葡萄糖吡喃糖苷。这些化合物的抗氧化活性通过DPPH(2,2-二苯基-1-吡啶并肼基)自由基清除法和山奈铁蛋白(8)显示出与DPPH的高反应活性。