Synthesis and biological evaluation of 6-(pyrimidin-4-yl)-1H-pyrazolo[4,3-b]pyridine derivatives as novel dual FLT3/CDK4 inhibitors
作者:Xiandeng Li、Tao Yang、Mengshi Hu、Yingxue Yang、Minghai Tang、Dexin Deng、Kongjun Liu、Suhong Fu、Yan Tan、Huan Wang、Yong Chen、Chufeng Zhang、Yong Guo、Bin Peng、Wenting Si、Zhuang Yang、Lijuan Chen
DOI:10.1016/j.bioorg.2022.105669
日期:2022.4
to play a significant role in tumor therapy. Herein, based on the previously reported JAK2/FLT3 inhibitor 18e, we described the synthesis, structure–activity relationship and biological evaluation of a series of unique 6-(pyrimidin-4-yl)-1H-pyrazolo[4,3-b]pyridine derivatives that inhibited FLT3 and CDK4 kinases. The optimized compound 23k exhibited low nanomolar range activities with IC50 values of
FMS 样酪氨酸激酶 3 (FLT3) 和细胞周期蛋白依赖性激酶 4/6 (CDK4/6) 抑制剂已被证明在肿瘤治疗中发挥重要作用。在此,基于先前报道的 JAK2/FLT3 抑制剂18e,我们描述了一系列独特的 6-(pyrimidin-4-yl)-1 H - pyrazolo[4,3- b ]吡啶衍生物,可抑制 FLT3 和 CDK4 激酶。优化的化合物23k表现出低纳摩尔范围的活性,对 FLT3 和 CDK4 的 IC 50值分别为 11 和 7 nM。在 MV4-11 异种移植肿瘤模型中,23k 在 200 mg/kg 剂量下的肿瘤生长抑制率为67 %,表明23k具有抗肿瘤治疗作用。