Molecular design, synthesis and anticoagulant activity evaluation of fluorinated dabigatran analogues
作者:Fei Wang、Yu-Jie Ren、Ming-Hui Dong
DOI:10.1016/j.bmc.2016.04.038
日期:2016.6
fluorinated dabigatran analogues, which were based on the structural scaffold of dabigatran, were designed by computer-aided simulation. Fifteen fluorinated dabigatran analogues were screened and synthesized. All target compounds were characterized by (1)H NMR, (13)C NMR, (19)F NMR and HRMS. According to the preliminary screening results of inhibition ratio, eleven analogues (inhibition ratio >90%)
在本研究中,通过计算机辅助模拟设计了一系列未报告的氟化达比加群类似物,这些类似物基于达比加群的结构支架。筛选并合成了十五种氟化达比加群类似物。所有目标化合物均通过(1)H NMR,(13)C NMR,(19)F NMR和HRMS进行表征。根据初步的抑制率筛选结果,评估了11种类似物(抑制率> 90%)的体外抗凝血酶活性(IC50)。测试结果表明,所有类似物均显示出对凝血酶的有效抑制活性。尤其是化合物8f,8k和8o,其IC50值分别为1.81、3.21和2.16nM,显示出显着的抗凝活性,在参考药物达比加群范围内(IC50 = 1.23nM)。而且,开发了化合物8k和8o以研究其在体内的抗凝活性。在那些部分中,化合物8o对动静脉血栓形成具有相当强的抑制作用,抑制率为84.66%,与达比加群(85.07%)相当。对接模拟表明,这些化合物可作为进一步开发新型抗凝药物的候选药物。