Structure-based optimization and derivatization of 2-substituted quinolone-based non-nucleoside HCV NS5B inhibitors with submicromolar cellular replicon potency
作者:Yu Cheng、Jian Shen、Run-Ze Peng、Gui-Feng Wang、Jian-Ping Zuo、Ya-Qiu Long
DOI:10.1016/j.bmcl.2016.04.042
日期:2016.6
sub-micromolar antiviral effect (EC50 = 0.4 μM, SI = 10.8) in Huh7.5.1 cells carrying a HCV genotype 2a. Considering the undesirable pharmacokinetic property of the highly substituted quinolones, a novel chemotype of 1,6-naphthyridine-4,5-diones were evolved via scaffold hopping, affording brand new structure HCV inhibitors with compound 6h (EC50 (gt2a) = 2.5 μM, SI = 7.2) as a promising hit. Molecular modeling
HCV NS5B 聚合酶是一种有吸引力且经过验证的抗 HCV 治疗靶点。从我们之前确定的作为新型非核苷 NS5B 聚合酶抑制剂的 2-芳基喹诺酮类药物开始,基于结构的优化通过采用特权片段杂交策略使2-烷基-N-苄基喹诺酮类药物具有更高的抗病毒效力。所述ñ - (4-氯苄基)-2-(甲氧基甲基)的喹诺酮衍生物5F证明是这个系列中最好的化合物,表现出选择亚微摩尔的抗病毒效果(EC 50 = 0.4 μM,SI = 10.8) 在携带 HCV 基因型 2a 的 Huh7.5.1 细胞中。考虑到高度取代的喹诺酮类药物的不良药代动力学特性,通过支架跳跃进化出一种新的化学型 1,6-naphthyridine-4,5-diones,提供了全新结构的 HCV 抑制剂与化合物6h (EC 50 (gt2a) = 2.5 μM , SI = 7.2) 作为一个有希望的打击。分子模型研究表明,2-烷基喹诺酮类和