Structure-activity relationship investigation for imidazopyrazole-3-carboxamide derivatives as novel selective inhibitors of Bruton's tyrosine kinase
作者:Dandan Zhang、Guiqing Xu、Jie Zhao、Yue Wang、Xiaofang Wu、Xing He、Wei Li、Shuting Zhang、Shouning Yang、Chunhua Ma、Yuqin Jiang、Qingjie Ding
DOI:10.1016/j.ejmech.2021.113724
日期:2021.12
tyrosine kinase) inhibitors are the most promising drugs for the treatment of hematological tumors. A high selectivity of BTK inhibitors ensures reduced side effects from off-targeting. Accordingly, here, based on Zanubrutinib, we designed and synthesized a new range of imidazopyrazole-3-carboxamide derivatives as novel BTK inhibitors that retained the amide group for improved selectivity. These compounds
BTK(布鲁顿酪氨酸激酶)抑制剂是治疗血液肿瘤最有希望的药物。BTK 抑制剂的高选择性确保减少脱靶的副作用。因此,在此,基于 Zanubrutinib,我们设计并合成了一系列新的咪唑吡唑-3-甲酰胺衍生物作为新型 BTK 抑制剂,保留了酰胺基团以提高选择性。这些化合物在体外显示出对 BTK 的有效抑制活性。值得注意的是,化合物12a (IC 50 5.2 nM) 和18a (IC 504.9 nM) 具有最高的激酶选择性。两者均有效抑制BTK自磷酸化,阻断细胞周期G0/G1期,诱导TMD8细胞凋亡。在TMD8细胞异种移植模型中, 25mg/kg的化合物12a每日两次和15mg/kg的化合物18a每日三次的剂量显着抑制肿瘤生长而没有明显毒性。总的来说,12a和18a是可以进一步开发的潜在选择性 BTK 抑制剂。