Design and synthesis of 1H-pyrazolo[3,4-d]pyrimidine derivatives as hematopoietic progenitor kinase 1 (HPK1) inhibitors
作者:Junjie Zhang、Yan Li、Haotian Tang、Qianqian Zhou、Linjiang Tong、Jian Ding、Hua Xie、Bing Xiong、Tongchao Liu
DOI:10.1016/j.bioorg.2023.106811
日期:2023.11
Despite immune checkpoint inhibitors' tremendous success in the treatment of tumors, the moderate response rate limits their widespread use. Hematopoietic progenitor kinase 1 (HPK1) is served as an essential negative regulator of T-cell receptor, which has been identified as a promising target for enhancing antitumor immunity. However, the development of a selective HPK1 inhibitor is still challenging.
尽管免疫检查点抑制剂在肿瘤治疗方面取得了巨大成功,但其缓慢的反应率限制了其广泛使用。造血祖细胞激酶 1 (HPK1) 是 T 细胞受体的重要负调节因子,已被确定为增强抗肿瘤免疫的有希望的靶点。然而,选择性 HPK1 抑制剂的开发仍然具有挑战性。在此,我们通过基于结构的合理设计报道了一系列新型 1 H -吡唑并[3,4- d ]嘧啶衍生物作为 HPK1 抑制剂。最佳化合物10n在低至0.1 μM的浓度下即可显着抑制HPK1(IC 50值为29.0 nM)和SLP76的磷酸化。此外,化合物10n对 25 种激酶(包括来自同一 MAP4K 家族的 GLK)表现出良好的选择性。总之,当前的研究提供了一种新型、有效的、选择性的 HPK1 抑制剂,可作为癌症免疫疗法未来发展的先导化合物。