Synthesis, structure activity relationship and in vitro anti-influenza virus activity of novel polyphenol-pentacyclic triterpene conjugates
作者:Haiwei Li、Man Li、Renyang Xu、Shouxin Wang、Yongmin Zhang、Lihe Zhang、Demin Zhou、Sulong Xiao
DOI:10.1016/j.ejmech.2018.12.006
日期:2019.2
drug-resistant strains of influenza virus. Our earlier studies have identified that certain pentacyclic triterpene derivatives are effective inhibitors of influenza virus infection. In the present study, a series of C-28 modified pentacyclic triterpene derivatives via conjugation with a series of polyphenols were synthesized, and their antiviral activities against influenza A/WSN/33 (H1N1) virus in MDCK (Madin-Darby
由于流感病毒耐药株的不断出现,迫切需要开发更有效的抗流感药。我们较早的研究已经确定某些五环三萜衍生物是流感病毒感染的有效抑制剂。在本研究中,通过与一系列多酚结合,合成了一系列C-28修饰的五环三萜衍生物,并且它们在MDCK(Madin-Darby犬肾)细胞中对A / WSN / 33(H1N1)流感病毒具有抗病毒活性。被评估。四种化合物23m,23o,23q和23s表现出强大的抗流感效力,平均IC 50在低微摩尔水平上的抗药性,超过了奥司他韦的效价。此外,在体外对MDCK细胞的四个共轭物的细胞毒活性表现出在100个没有毒性 μ化合物M.此外机制研究23S,与IC的最佳代表缀合物中的一个50的5.80值 μ M和选择性指数(SI超过17.2)值,通过血细胞凝集抑制(HI),表面等离子体共振和分子模拟表明,该共轭紧密结合于病毒包膜的血凝素(ķ d = 15.6 μ M),由此流感病毒的侵入阻挡到宿主细胞中。