Design, synthesis, anticoagulant activity evaluation and molecular docking studies of a class of N-ethyl dabigatran derivatives
作者:Weixin Ren、Yujie Ren、Shuai Wang
DOI:10.1016/j.ejmech.2016.05.020
日期:2016.9
A class of N-ethyl dabigatran derivatives was designed based on pharmacological strategies for inhibition of thrombin activity and the structure-activity relationship studies of the previous dabigatran derivatives. Activities of these novel compounds were predicted based on CoMFA model, and most of the compounds had comparable predicted activity with dabigatran. All of screened compounds were synthesized
基于抑制凝血酶活性的药理策略和以前的达比加群衍生物的结构-活性关系研究,设计了一类N-乙基达比加群衍生物。这些新化合物的活性是基于CoMFA模型预测的,大多数化合物的预测活性与达比加群相当。合成所有筛选的化合物,并通过1 H NMR,13 C NMR和HRMS进行表征。随后,评估了这些化合物对凝血酶的抑制活性。在这些化合物中,9a-9e,9h,9l-9n和9p表现出与达比加群相当的抑制活性(IC 50 = 1.20nM),另外,化合物9p(IC 50 = 0.96nM)表现出比达比加群更好的抑制活性。此外,化合物9p还显示出对动静脉血栓形成的良好抑制活性,抑制率为(85.35±0.72)%,与达比加群(85.07±0.61)%相当。这些结果,以及相关的分子对接研究,可以为化合物9p作为有效的凝血酶抑制剂的进一步开发提供重要的基础。