Discovery of novel HCV inhibitors: Synthesis and biological activity of 6-(indol-2-yl)pyridine-3-sulfonamides targeting hepatitis C virus NS4B
作者:Xiaoyan Zhang、Nanjing Zhang、Guangming Chen、Anthony Turpoff、Hongyu Ren、James Takasugi、Christie Morrill、Jin Zhu、Chunshi Li、William Lennox、Steven Paget、Yalei Liu、Neil Almstead、F. George Njoroge、Zhengxian Gu、Takashi Komatsu、Valerie Clausen、Christine Espiritu、Jason Graci、Joseph Colacino、Fred Lahser、Nicole Risher、Marla Weetall、Amin Nomeir、Gary M. Karp
DOI:10.1016/j.bmcl.2013.04.049
日期:2013.7
ne-3-sulfonamides was prepared and evaluated for their ability to inhibit HCV RNA replication in the HCV replicon cell culture assay. Preliminary optimization of this series furnished compounds with low nanomolar potency against the HCV genotype 1b replicon. Among these, compound 8c has identified as a potent HCV replicon inhibitor (EC50 = 4 nM) with a selectivity index with respect to cellular GAPDH
制备了一系列新的6-(吲哚-2-基)吡啶-3-磺酰胺,并在HCV复制子细胞培养测定中评估了它们抑制HCV RNA复制的能力。该系列的初步优化为化合物提供了针对HCV基因型1b复制子的低纳摩尔浓度的化合物。在这些化合物中,化合物8c被鉴定为有效的HCV复制子抑制剂(EC 50 = 4 nM),相对于细胞GAPDH的选择性指数大于2500。此外,化合物8c在大鼠的IV半衰期为6小时,口服生物利用度(F)为62%时,具有良好的药代动力学特征。HCV复制子抗性的选择确定了HCV NS4B中的氨基酸取代,从而赋予了对这些化合物的抗性。这些化合物有望成为通过未充分利用的病毒靶标介导的具有抗HCV活性的新化学型。