Reinvestigation of structure–activity relationship of methoxylated chalcones as antimalarials: Synthesis and evaluation of 2,4,5-trimethoxy substituted patterns as lead candidates derived from abundantly available natural β-asarone
作者:Rakesh Kumar、Dinesh Mohanakrishnan、Abhishek Sharma、Naveen Kumar Kaushik、Kalpana Kalia、Arun Kumar Sinha、Dinkar Sahal
DOI:10.1016/j.ejmech.2010.08.049
日期:2010.11
causes a decrease. In particular, 2,4,5-trimethoxy substitution pattern at ring A provided potent analogues which were easily derived from abundantly available natural β-asarone rich Acorus calamus oil. Cytotoxic evaluation indicated that the most active compounds 27 (IC50: 1.8 μM) and 26 (IC50: 2 μM) were also relatively non-toxic. Furthermore, compound 12 showed excellent resistance index of 1.1 against
我们已经使用基于荧光的SYBR Green分析方法检测了一系列甲氧基化查耳酮(A –CH CH–CO– B)对恶性疟原虫(3D7株)的抗疟结构与活性的关系。我们的研究表明,环A上的释放电子的甲氧基和环B上的吸电子基团提高了抗疟药的效力,而这些基团的位置互换导致其降低。特别地,在环2,4,5-三甲氧基取代模式甲提供一种很容易从可大量获得的天然衍生的强效的类似物β细辛醚丰富菖蒲油。细胞毒性评估表明,活性最高的化合物27(IC 50:1.8μM)和26(IC 50:2μM)也是相对无毒的。此外,化合物12对P的耐氯喹Dd2菌株显示出优异的抗性指数1.1 。恶性肿瘤。