Design, synthesis, and evaluation of novel VEGFR2 kinase inhibitors: Discovery of [1,2,4]triazolo[1,5-a]pyridine derivatives with slow dissociation kinetics
作者:Yuya Oguro、Douglas R. Cary、Naoki Miyamoto、Michiko Tawada、Hidehisa Iwata、Hiroshi Miki、Akira Hori、Shinichi Imamura
DOI:10.1016/j.bmc.2013.04.042
日期:2013.8
For the purpose of discovering novel type-II inhibitors of vascular endothelial growth factor receptor 2 (VEGFR2) kinase, we designed and synthesized 5,6-fused heterocyclic compounds bearing a anilide group. A co-crystal structure analysis of imidazo[1,2-b]pyridazine derivative 2 with VEGFR2 revealed that the N1-nitrogen of imidazo[1,2-b]pyridazine core interacts with the backbone NH group of Cys919
为了发现新型的血管内皮生长因子受体2(VEGFR2)激酶II型抑制剂,我们设计并合成了带有苯胺基团的5,6-稠合杂环化合物。咪唑并[1,2- b ]哒嗪衍生物2与VEGFR2的共晶体结构分析表明,咪唑并[1,2 - b ]哒嗪核心的N 1-氮与Cys919的骨架NH基相互作用。为了保留这种必要的相互作用,我们设计了一系列咪唑并[1,2- a ]吡啶,[1,2,4]三唑并[1,5- a ]吡啶,噻唑并[5,4- b]。]吡啶和1,3-苯并噻唑衍生物在相应位置保持环氮作为氢键受体(HBA)。这样设计的所有化合物均显示出对VEGFR2激酶的强抑制活性,[1,2,4]三唑并[1,5- a ]吡啶13d显示出良好的理化性质。此外,13d以缓慢的解离动力学抑制了VEGFR2激酶,并且还抑制了血小板衍生的生长因子受体(PDGFR)激酶。口服13d在裸鼠的DU145和A549异种移植模型中显示出强大的抗肿瘤功效。