Discovery and Characterization of Fluorine-Substituted Diarylpyrimidine Derivatives as Novel HIV-1 NNRTIs with Highly Improved Resistance Profiles and Low Activity for the hERG Ion Channel
作者:Dongwei Kang、F. Xavier Ruiz、Da Feng、Alyssa Pilch、Tong Zhao、Fenju Wei、Zhao Wang、Yanying Sun、Zengjun Fang、Erik De Clercq、Christophe Pannecouque、Eddy Arnold、Xinyong Liu、Peng Zhan
DOI:10.1021/acs.jmedchem.9b01769
日期:2020.2.13
development of two potent NNRTIs, K-5a2 and 25a, exhibiting effective anti-HIV-1 potency and resistance profiles compared with etravirine. However, both inhibitors suffered from potent hERG inhibition and short half-life. In this article, with K-5a2 and etravirine as leads, series of novel fluorine-substituted diarylpyrimidine derivatives were designed via molecular hybridization and bioisosterism strategies
我们之前的努力导致了两种有效的 NNRTI 的开发,即 K-5a2 和 25a,与依曲韦林相比,它们表现出有效的抗 HIV-1 效力和耐药性。然而,这两种抑制剂均存在强效 hERG 抑制作用且半衰期短。本文以K-5a2和依曲韦林为先导,通过分子杂交和生物电子等排策略设计了一系列新型氟取代二芳基嘧啶衍生物。结果表明24b是最活跃的抑制剂,对耐药菌株表现出广谱活性(EC50 = 3.60-21.5 nM),显着降低细胞毒性(CC50 = 155 μM),并降低hERG抑制(IC50 > 30 μM)。晶体学研究证实了 24b 的结合和氟原子的作用,以及腈基与 H235 主链羰基的最佳接触。此外,24b 显示出更长的半衰期和良好的安全特性。所有结果都表明,24b 作为抗 HIV-1 候选药物在规避耐药性方面具有重大前景。