Synthesis and biological evaluation of novel imidazole nucleosides as potential anti-dengue virus agents
作者:Yuki Okano、Noriko Saito-Tarashima、Madoka Kurosawa、Ai Iwabu、Masashi Ota、Tadashi Watanabe、Fumihiro Kato、Takayuki Hishiki、Masahiro Fujimuro、Noriaki Minakawa
DOI:10.1016/j.bmc.2019.04.015
日期:2019.6
In this work, we developed imidazole nucleoside derivatives with anti-dengue virus (DENV) activity was examined. First, compounds in a nucleosides library were screened to find lead compounds which inhibit replication of DENV. As a result, 5-ethynyl-(1-β-d-ribofuranosyl)imidazole-4-carboxamide (1; EICAR) and its 4-carbonitrile derivative EICNR (2) were selected as promising antiviral compounds. However
在这项工作中,我们开发了具有抗登革热病毒(DENV)活性的咪唑核苷衍生物。首先,筛选核苷文库中的化合物以发现抑制DENV复制的先导化合物。结果,选择了5-乙炔基-(1-β-d-呋喃呋喃糖基)咪唑-4-羧酰胺(1; EICAR)及其4-腈衍生物EICNR(2)作为有前景的抗病毒化合物。但是,它们两个都还显示出细胞毒性。为了开发有效且毒性较小的化合物,制备了EICAR和EICNR 3-6的4'-硫代和4'-硒代衍生物。所得的4'-thioEICAR和4'-thioEICNR表现出对DENV复制的抑制作用,而没有如利巴韦林(阳性对照)那样强的细胞毒性。