Synthesis and structure–activity relationship study of pyrazolo[3,4- d ]pyrimidines as tyrosine kinase RET inhibitors
作者:Chengyan Wang、Hongchun Liu、Zilan Song、Yinchun Ji、Li Xing、Xia Peng、Xisheng Wang、Jing Ai、Meiyu Geng、Ao Zhang
DOI:10.1016/j.bmcl.2017.03.088
日期:2017.6
Three series of pyrazolo[3,4-d]pyrimidine derivatives were synthesized and evaluated as RET kinase inhibitors. Compounds 23a and 23c were identified to show significant activity both in the biochemical and the BaF3/CCDC6-RET cell assays. Compound 23c was found to significantly inhibit RET phosphorylation and down-stream signaling in BaF3/CCDC6-RET cells, confirming its potent cellular RET-targeting
合成了三个系列的吡唑并[3,4-d]嘧啶衍生物,并作为RET激酶抑制剂进行了评估。化合物23a和23c在生化和BaF3 / CCDC6-RET细胞分析中均显示出显着活性。发现化合物23c在BaF3 / CCDC6-RET细胞中显着抑制RET磷酸化和下游信号传导,从而证实了其有效的细胞RET靶向特性。与具有严重毒性相关的对KDR具有相同效力的其他RET抑制剂不同,23c即使在1μM的浓度下也没有显示出显着的KDR抑制作用。这些结果证明23c是有效且选择性的RET抑制剂。