Discovery of [1,2,4]Triazolo[4,3-<i>a</i>]pyridines as Potent Inhibitors Targeting the Programmed Cell Death-1/Programmed Cell Death-Ligand 1 Interaction
作者:Mingze Qin、Qi Cao、Shuaishuai Zheng、Ye Tian、Haotian Zhang、Jun Xie、Hongbo Xie、Yajing Liu、Yanfang Zhao、Ping Gong
DOI:10.1021/acs.jmedchem.9b00312
日期:2019.5.9
Inhibition of the programmed cell death-1 (PD-1)/programmed cell death-ligand 1 (PD-L1) interaction using small-molecule inhibitors is an emerging immunotherapeutic approach. A novel series of [1,2,4]triazolo[4,3- a]pyridines were designed and found to be potent inhibitors of the PD-1/PD-L1 interaction. Among them, compound A22 exhibited the most potent activity, as assessed by homogenous time-resolved
使用小分子抑制剂抑制程序性细胞死亡1(PD-1)/程序性细胞死亡配体1(PD-L1)相互作用是一种新兴的免疫治疗方法。设计了一系列新的[1,2,4]三唑并[4,3-a]吡啶,并发现它们是PD-1 / PD-L1相互作用的有效抑制剂。其中,通过均相时间分辨荧光分析评估,化合物A22表现出最强的活性,IC50为92.3 nM。此外,在Hep3B / OS-8 / hPD-L1和CD3 T细胞的共培养模型中,A22剂量依赖性升高的干扰素-γ产生。我们得出的结论是,A22是开发PD-1 / PD-L1相互作用抑制剂的有前途的先导化合物。此外,我们探索了新合成的[1,2,4] triazolo [4,并证明了环融合策略可用于设计Bristol-Myers Squibb化学系列的类似物。这些研究为将来的药物设计铺平了道路。