Discovery of pyrimidine nucleoside dual prodrugs and pyrazine nucleosides as novel anti-HCV agents
作者:Shuang Guo、Mingshuo Xu、Qi Guo、Fuqiang Zhu、Xiangrui Jiang、Yuanchao Xie、Jingshan Shen
DOI:10.1016/j.bmc.2019.01.007
日期:2019.3
metabolized in human liver microsomes expectantly. On the other hand, aiming to discover novel anti-HCV nucleosides, pyrazin-2(1H)-one nucleosides and their phosphoramidate prodrugs were investigated. Several active compounds were discovered, such as 25e (EC50 = 7.3 μM) and S-29b (EC50 = 19.5 μM). This kind of nucleosides were interesting and would open a new avenue for the development of antiviral agents
为了探索双重前药策略在开发抗HCV药物中的应用潜力,设计并合成了在尿嘧啶部分的C4或N3位置修饰的多种Sofosbuvir衍生物。在基于基因型1b的复制子Huh-7细胞系中,某些化合物表现出有效的抗HCV活性,例如4e和8a-8c具有与sofosbuvir相似的EC50值(0.20-0.22μM)(EC50 = 0.18μM)。此外,8b表现出良好的人血浆稳定性,并且预期在人肝微粒体中容易被代谢。另一方面,为了发现新颖的抗HCV核苷,对吡嗪-2(1H)-一核苷及其氨基磷酸酯前药进行了研究。发现了几种活性化合物,例如25e(EC50 = 7.3μM)和S-29b(EC50 = 19.5μM)。