1,2,4-Triazolo[1,5-a]pyrimidines: Efficient one-step synthesis and functionalization as influenza polymerase PA-PB1 interaction disruptors
作者:Maria Chiara Pismataro、Tommaso Felicetti、Chiara Bertagnin、Maria Giulia Nizi、Anna Bonomini、Maria Letizia Barreca、Violetta Cecchetti、Dirk Jochmans、Steven De Jonghe、Johan Neyts、Arianna Loregian、Oriana Tabarrini、Serena Massari
DOI:10.1016/j.ejmech.2021.113494
日期:2021.10
In the search for new anti-influenza virus (IV) compounds, we have identified the 1,2,4-triazolo[1,5-a]pyrimidine (TZP) as a very suitable scaffold to obtain compounds able to disrupt IV RNA-dependent RNA polymerase (RdRP) PA-PB1 subunits heterodimerization. In this work, in order to acquire further SAR insights for this class of compounds and identify more potent derivatives, we designed and synthesized
在寻找新的抗流感病毒(IV)化合物时,我们已确定1,2,4-三唑并[1,5- a ]嘧啶(TZP)是非常合适的支架,以获得能够破坏IV RNA-依赖性RNA聚合酶(RdRP)PA-PB1亚基异二聚化。在这项工作中,为了获得有关此类化合物的更多SAR信息并确定更有效的衍生物,我们设计并合成了其他类似物系列,以研究TZP核周围取代基的作用。为此,我们开发了四个简便而有效的一步法合成5-苯基-,6-苯基-和7-苯基-2-氨基-[1,2,4]三唑[1,5- a ]嘧啶和2-氨基-5-苯基-[1,2,4]三唑[1,5- a] pyrimidin-7-ol。还以良好的产率制备了在TZP的C-2位具有羧酸乙酯部分的两个类似物。然后,将本文合成的支架和两个先前的支架进行功能化并评估其抗IAV活性,从而鉴定出同时显示抗PA-PB1(IC 50 = 19.5μM)和抗IAV活性(EC的化合物22)50 =