6-Arylthio-3-hydroxypyrimidine-2,4-diones potently inhibited HIV reverse transcriptase-associated RNase H with antiviral activity
作者:Lei Wang、Jing Tang、Andrew D. Huber、Mary C. Casey、Karen A. Kirby、Daniel J. Wilson、Jayakanth Kankanala、Jiashu Xie、Michael A. Parniak、Stefan G. Sarafianos、Zhengqiang Wang
DOI:10.1016/j.ejmech.2018.07.039
日期:2018.8
Human immunodeficiency virus (HIV) reverse transcriptase (RT) associated ribonuclease H (RNase H) remains the only virally encoded enzymatic function not targeted by current drugs. Although a few chemotypes have been reported to inhibit HIV RNase H in biochemical assays, their general lack of significant antiviral activity in cell culture necessitates continued efforts in identifying highly potent
人类免疫缺陷病毒(HIV)逆转录酶(RT)相关的核糖核酸酶H(RNase H)仍然是当前药物未靶向的唯一病毒编码的酶功能。尽管在生化分析中已经报道了一些化学型抑制HIV RNase H,但是它们在细胞培养中普遍缺乏显着的抗病毒活性,因此需要继续努力鉴定具有高效抗病毒活性的RNase H抑制剂。我们在此报告了3-羟基嘧啶-2,4-二酮(HPD)化学型的新6-芳硫基亚型的设计,合成,生化和抗病毒评估。在生化分析中,这些新的类似物在单个纳摩尔范围内抑制RT RNase H,而在浓度高达10μM的情况下却不抑制RT聚合酶(pol),具有非凡的生化抑制选择性。许多类似物还在低至亚微摩尔范围内抑制整合酶链转移(INST)活性。更重要的是,大多数类似物都在低微摩尔范围内抑制HIV而无细胞毒性。最后,复合13j(RNase H IC 50 = 0.005μM; RT pol IC 50 = 10μM;