New pseudodimeric aurones as palm pocket inhibitors of Hepatitis C virus RNA-dependent RNA polymerase
作者:Amel Meguellati、Abdelhakim Ahmed-Belkacem、Alessandra Nurisso、Wei Yi、Rozenn Brillet、Nawel Berqouch、Laura Chavoutier、Antoine Fortuné、Jean-Michel Pawlotsky、Ahcène Boumendjel、Marine Peuchmaur
DOI:10.1016/j.ejmech.2016.03.005
日期:2016.6
polymerase (RdRp) is a key enzyme for Hepatitis C Virus (HCV) replication. In addition to the catalytic site, this enzyme is characterized by the presence of at least four allosteric pockets making it an interesting target for development of inhibitors as potential anti-HCV drugs. Based on a previous study showing the potential of the naturally occurring aurones as inhibitors of NS5B, we pursued our efforts
NS5B RNA依赖性RNA聚合酶(RdRp)是丙型肝炎病毒(HCV)复制的关键酶。除催化位点外,该酶的特征还在于存在至少四个变构口袋,使其成为开发作为潜在抗HCV药物的抑制剂的有趣靶标。根据先前的研究表明天然存在的金黄色素作为NS5B抑制剂的潜力,我们继续致力于目前尚未研究的假二聚体金黄色素。因此,合成了以苯并呋喃酮部分之间存在间隔基为特征的14种原始化合物,并通过体外试验研究了它们作为HCV RdRp抑制剂。活性最高的抑制剂假二聚体金酮4诱导了高抑制活性(IC50 = 1.3μM)。诱变和分子建模研究表明,活性最高的衍生物的结合位点可能是手掌口袋I,而不是单体衍生物的拇指口袋I。