Two new flavonol glycosides and biological activities of<i>Diplotaxis harra</i>(Forssk.) Boiss.
作者:Mona E.S. Kassem、Manal S. Afifi、Mona M. Marzouk、Manal A. Mostafa
DOI:10.1080/14786419.2013.825914
日期:2013.12
Two new flavonol glycosides, isorhamnetin 3-O-β-glucopyranoside-4′-O-β-xylopyranoside (1) and kaempferol 3-O-β-glucopyranoside -4′-O-β-xylopyranoside (2), were isolated from the defatted aqueous methanol extract of the whole plant Diplotaxis harra along with 12 known flavonols (3–14). They were characterised by chemical and spectral methods. The 70% aqueous methanol, chloroform and defatted aqueous
两个新的黄酮醇苷,异鼠李素3- ö -β-D-吡喃葡萄糖苷-4'- O- β-D-吡喃木糖苷(1)和山奈酚3- ö -β-D-吡喃葡萄糖苷-4'- O- β-D-吡喃木糖苷(2)中,从分离整个植物的脱脂甲醇水提取物Diplotaxis harra以及12种已知的黄酮醇(3–14)。它们通过化学和光谱方法表征。70%的甲醇水溶液,氯仿和脱脂的甲醇水溶液植物提取物表现出显着的抗氧化作用(硝基蓝四唑还原法)。针对11种肿瘤细胞系进行了细胞毒活性(磺胺多巴胺B测定)。这三种提取物对结肠50,GI 50(0.45、0.4、0.07μg/ mL)和P388 [3-(4,5-二甲基噻唑-2yl)-2,5-]对结肠38,P388和MKN-28表现出最大的抗增殖活性。分别用IC 50(0.26,0.24,0.25μg/ mL)进行检测。氯仿提取物作为具有IC 50的P388的真核DNA拓扑异构酶II抑制剂表现出最高的活性0