作者:Rui Juan Li、Guan E Yang、Hong Juan Bai、Qiong Zhang、Jian Kuan Li、Qing Shan Li、Zhao Ming Zhang
DOI:10.1007/s10600-012-0376-0
日期:2012.11
A new flavonoid glycoside, rhamnazin-3-O-β-D-apiosyl-(1→2)-β-D-[6″-(3-hydroxy-3-methylglutaric methyl ester)]-glucoside (1), was isolated together with seven known flavonoid compounds from mistletoe transformed by Rhodobacter sphaeroides (PSBT). Its structure was elucidated on the basis of MS, 1D, and 2D NMR techniques. All of the eight compounds were subjected to antioxidant activity screening.
一种新的黄酮苷,鼠李素-3-O-β-D-apiosyl-(1→2)-β-D-[6″-(3-羟基-3-甲基戊二酸甲酯)]-葡萄糖苷 (1)与七种已知的黄酮类化合物一起从球形红杆菌 (PSBT) 转化的槲寄生中分离出来。基于 MS、1D 和 2D NMR 技术阐明了其结构。所有八种化合物均经过抗氧化活性筛选。