Design, synthesis and biological evaluation of novel, orally bioavailable pyrimidine-fused heterocycles as influenza PB2 inhibitors
作者:Jian Xiong、Jingjing Wang、Guoping Hu、Weili Zhao、Jianqi Li
DOI:10.1016/j.ejmech.2018.11.015
日期:2019.1
With the aim to identify novel influenza PB2 inhibitors with high potency and excellent pharmacokinetic parameters, we have designed and synthesized two new series of pyrimidine-fused heterocycle derivatives based on two generations of co-crystal structures. Docking studies with the newly disclosed PDB structure guided the second round of rational design and led to the discovery of 25m, 25o and 25p
为了鉴定具有高效力和出色药代动力学参数的新型流感PB2抑制剂,我们基于两代共晶体结构设计并合成了两个新系列的嘧啶融合杂环衍生物。使用新公开的PDB结构的对接研究指导了第二轮合理设计,并导致发现25m,25o和25p作为具有增强效价(EC 50 <1 nM)的代表性化合物。在确定了代谢不稳定位点后,化合物25p的C N置换成功产生了化合物29c表现出高度改善的PK特性(Cl = 1.3 mL / min / kg,小鼠10 mpk时PO AUC = 152μMh,F = 57%)和增强的效力,成为治疗A型流感的有希望的先导化合物感染。