Evaluation of Amide Bioisosteres Leading to 1,2,3-Triazole Containing Compounds as GPR88 Agonists: Design, Synthesis, and Structure–Activity Relationship Studies
作者:Md Toufiqur Rahman、Ann M. Decker、Lucas Laudermilk、Rangan Maitra、Weiya Ma、Sami Ben Hamida、Emmanuel Darcq、Brigitte L. Kieffer、Chunyang Jin
DOI:10.1021/acs.jmedchem.1c01075
日期:2021.8.26
The orphan receptor GPR88 has been implicated in a number of striatal-associated disorders, yet its endogenous ligand has not been discovered. We have previously reported that the amine functionality in the 2-AMPP-derived GPR88 agonists can be replaced with an amide (e.g., 4) without losing activity. Later, we have found that the amide can be replaced with a bioisosteric 1,3,4-oxadiazole with improved
孤儿受体 GPR88 与许多纹状体相关疾病有关,但其内源性配体尚未发现。我们之前曾报道过,2-AMPP 衍生的 GPR88 激动剂中的胺官能团可以用酰胺(例如4 )取代,而不会失去活性。后来,我们发现酰胺可以用生物电子等排的1,3,4-恶二唑代替,其效力得到改善。在此,我们报告了用多种含有三个杂原子的唑类进行酰胺生物电子等排取代的进一步研究,随后进行了集中的构效关系研究,最终发现了一系列新型1,4-二取代的1 H -1,2 ,3-三唑作为 GPR88 激动剂。总的来说,我们的药物化学工作已经产生了一种强效、有效且具有脑渗透性的 GPR88 激动剂53 (cAMP EC 50 = 14 nM),它是研究大脑中 GPR88 功能的合适探针。