A potent seven-membered cyclic BTK (Bruton's tyrosine Kinase) chiral inhibitor conceived by structure-based drug design to lock its bioactive conformation
作者:Francisco Lopez-Tapia、Yan Lou、Christine Brotherton-Pleiss、Andreas Kuglstatter、Sung-Sau So、Rama Kondru
DOI:10.1016/j.bmcl.2019.03.001
日期:2019.5
A seven-membered cyclic chiral analog of potent lead BTK inhibitor 1 was envisioned by structure-based design to lock the molecule into its bioactive conformation. For the elaboration of the seven-membered ring, compound 1 pyridone 6-position was substituted with the purpose to prevent formation of reactive metabolites. Eventually, the cyclic chiral compound 3 maintained the high potency of 1, and
通过基于结构的设计设想了有效的BTK铅前导抑制剂1的七元环状手性类似物,以将分子锁定在其生物活性构象中。为了加工七元环,化合物1的吡啶酮6位被取代,目的是防止形成反应性代谢物。最终,环状手性化合物3保持了1的高效力,最重要的是在GSH或TDI分析中均未显示活性,表明未形成反应性代谢产物。通过X射线晶体学证实了预期的3与BTK的结合构象。合成地,通过使用TosMIC作为连接试剂获得了关键的七元环形成。