Synthesis and Structure–Activity Relationship (SAR) Studies of Novel Pyrazolopyridine Derivatives as Inhibitors of Enterovirus Replication
作者:Yanpeng Xing、Jun Zuo、Paul Krogstad、Michael E. Jung
DOI:10.1021/acs.jmedchem.7b01863
日期:2018.2.22
A series of novel pyrazolopyridine compounds have been designed and prepared by a general synthetic route. Their activities against the replication of poliovirus-1, EV-A71, and CV-B3 enteroviruses were evaluated. The comprehensive understanding of the structure–activity relationship was obtained by utilizing the variation of four positions, namely, N1, C6, C4, and linker unit. From the screened analogues
采用通用合成路线设计并制备了一系列新型吡唑并吡啶化合物。评估了它们对脊髓灰质炎病毒 1、EV-A71 和 CV-B3 肠道病毒复制的活性。利用N1、C6、C4和接头单元四个位置的变化,全面了解构效关系。从筛选的类似物中,在病毒复制抑制 50% (SI 50 ) 时具有最高选择性指数的抑制剂是那些在 N1 位置具有异丙基和在 C6 位置具有噻吩-2-基单元的抑制剂。此外,C4 位置提供了最大的改进潜力,因为许多不同的N-芳基比先导化合物具有更好的抗病毒活性和相容性JX001 . 例如,具有 2-吡啶基的JX040是对非脊髓灰质炎肠道病毒具有最强活性的类似物,而具有 3-氨磺酰基苯基部分的JX025对脊髓灰质炎病毒具有最佳活性。此外,具有新型吡唑并吡啶杂环的类似物JX037也被证明具有良好的抗肠病毒活性,这进一步扩大了抗肠病毒药物设计的化合物空间。