Design and synthesis of tri-substituted pyrimidine derivatives as bifunctional tumor immunotherapeutic agents targeting both A2A adenosine receptors and histone deacetylases
作者:Ruiquan Liu、Wenwen Duan、Wenzhong Yan、Jinfeng Zhang、Jianjun Cheng
DOI:10.1016/j.cclet.2023.108136
日期:2023.1
The A2A adenosine receptor (A2AAR) has attracted attention as an emerging immunotherapeutic target with several antagonists being evaluated in clinical trials. However, A2AAR antagonists show limited efficacy as monotherapies. Herein, we communicate our design and synthesis of a novel series of A2AAR/histone deacetylase (HDAC) bifunctional inhibitors, based on the core structure of the A2AAR antagonist
A 2A腺苷受体(A 2A AR)作为一种新兴的免疫治疗靶点引起了人们的关注,多种拮抗剂正在临床试验中进行评估。然而,A 2A AR拮抗剂作为单一疗法的疗效有限。在此,我们基于 A 2A AR 拮抗剂PBF-509的核心结构,介绍了一系列新型 A 2A AR/组蛋白脱乙酰酶 (HDAC) 双功能抑制剂的设计和合成。新化合物采用药效团合并策略设计,具有三取代嘧啶核心。测试了所有新化合物对A 2A AR的结合亲和力和对 HDAC 的抑制活性。与 HDAC 抑制剂SAHA和MGCD-0103相比,许多化合物在体外对这两个靶点均表现出纳摩尔或亚纳摩尔活性,其中一些化合物对 MC38、CT26 和 HCT116 结肠癌细胞系表现出同等有效的抗增殖活性。通过分子对接研究预测了化合物5a在 A 2A AR 和 HDAC1 中的结合姿势。总的来说,这些结果表明这些三取代嘧啶衍生物是开发 A 2A AR/HDAC