New A2A adenosine receptor antagonists: a structure-based upside-down interaction in the receptor cavity
作者:Catia Lambertucci、Andrea Spinaci、Michela Buccioni、Diego Dal Ben、Michael Alliance Ngouadjeu Ngnintedem、Sonja Kachler、Gabriella Marucci、Karl-Norbert Klotz、Rosaria Volpini
DOI:10.1016/j.bioorg.2019.103183
日期:2019.11
Adenosine receptor antagonists are generally based on heterocyclic core structures presenting substituents of various volumes and chemical-physical profiles. Adenine and purine-based adenosine receptor antagonists have been reported in literature. In this work we combined various substituents in the 2, 6, and 8-positions of 9-ethylpurine to depict a structure-affinity relationship analysis at the human
腺苷受体拮抗剂通常基于杂环核心结构,所述杂环核心结构具有各种体积和化学物理特性的取代基。文献中已经报道了基于腺嘌呤和嘌呤的腺苷受体拮抗剂。在这项工作中,我们结合了9-乙基嘌呤的2、6和8位上的各种取代基,以描述人腺苷受体的结构亲和关系分析。通过分子建模分析对化合物进行合理设计,然后在人腺苷受体的放射性配体结合研究中进行合成和评估。新化合物显示出对人腺苷受体的亲和力,某些衍生物具有较低的纳摩尔K i数据,尤其是在A 2A处AR子类型。嘌呤核心被证明是通用的核心结构,用于开发对这些膜蛋白具有纳摩尔摩尔亲和力的新型腺苷受体拮抗剂。