Glucose-containing flavones—their synthesis and antioxidant and neuroprotective activities
作者:Seung Hwan Kim、Ch. Naveen Kumar、Hyoung Ja Kim、Dong Han Kim、Jungsook Cho、Changbae Jin、Yong Sup Lee
DOI:10.1016/j.bmcl.2009.09.062
日期:2009.11
reactive oxygen species can attack biological molecules leading to cell or tissue injury. In this study, glucose moiety was attached at the C-7 position of quercetin 3-O-methyl ether (1) and luteolin (2) through glycosidic bond or ether linkage. The glucose-containing compounds showed potent DPPH and superoxide anion radical scavenging and lipid peroxidation inhibition activities and nearly equivalent
由于高反应性,活性氧可以攻击生物分子,从而导致细胞或组织损伤。在这项研究中,葡萄糖部分通过糖苷键或醚键连接在槲皮素3- O-甲基醚(1)和木犀草素(2)的C-7位。含葡萄糖的化合物在原代培养的大鼠皮层细胞中显示出有效的DPPH和超氧阴离子自由基清除和脂质过氧化抑制活性,并且对母体糖苷具有抗H 2 O 2诱导的氧化神经元损伤的几乎同等的保护作用。在测试的化合物中,3b和3c最有效(IC 50值分别为7.33和5.34μM),表现出与母体化合物1和2几乎相同的作用(IC 50分别 为3.50和3.75μM)。