Discovery of pyrido[3,2-d]pyrimidin-6(5H)-one derivatives as checkpoint kinase 1 (CHK1) inhibitors with potent antitumor efficacy
作者:Shihe Hu、Cuihua Jiang、Qiaomei Jin
DOI:10.1016/j.ejmech.2024.116351
日期:2024.4
Checkpoint kinase 1 (CHK1) plays a crucial role in the DNA damage response pathway, making it an attractive target for cancer therapy. Herein, we present the synthesis, optimization, and evaluation of selective CHK1 inhibitors with a pyrido[3,2-]pyrimidin-6(5)-one scaffold. Among them, compound showed single-digit nanomolar potency against CHK1 (IC: 0.55 nM) with good kinase selectivity. Notably, showed
检查点激酶 1 (CHK1) 在 DNA 损伤反应途径中发挥着至关重要的作用,使其成为癌症治疗的一个有吸引力的靶点。在此,我们介绍了具有吡啶并[3,2-]嘧啶-6(5)-one支架的选择性CHK1抑制剂的合成、优化和评估。其中,化合物对 CHK1 表现出个位数纳摩尔效力(IC50:0.55 nM),并具有良好的激酶选择性。值得注意的是,单独在 MV-4-11 细胞中表现出抗增殖作用 (IC = 202 nM),与吉西他滨联合在 HT-29 细胞中表现出协同作用 (IC = 63.53 nM)。此外,与吉西他滨的组合在HT-29异种移植小鼠模型中表现出协同作用。总的来说,这项工作为选择性 CHK1 抑制剂的开发和癌症治疗策略奠定了坚实的基础。