Discovery of a Novel and Brain-Penetrant <i>O</i>-GlcNAcase Inhibitor via Virtual Screening, Structure-Based Analysis, and Rational Lead Optimization
作者:Michiko Tawada、Makoto Fushimi、Kei Masuda、Huikai Sun、Noriko Uchiyama、Yohei Kosugi、Weston Lane、Richard Tjhen、Satoshi Endo、Tatsuki Koike
DOI:10.1021/acs.jmedchem.0c01712
日期:2021.1.28
profiles are desirable to characterize this enzyme. Herein, we report the discovery of a potent and novel OGA inhibitor, compound 5i, comprising an aminopyrimidine scaffold, identified by virtual screening based on multiple methodologies combining structure-based and ligand-based approaches, followed by sequential optimization with a focus on ligand lipophilicity efficiency. This compound was observed
O- GlcNAcase(OGA)作为tau介导的神经退行性疾病的有吸引力的治疗靶点,受到越来越多的关注。然而,其在这些病理中的作用仍不清楚。因此,需要具有有利的药代动力学特征的有效化学工具来表征该酶。在此,我们报告了一种有效且新颖的OGA抑制剂化合物5i的发现,该化合物包含氨基嘧啶支架,通过基于多种方法的虚拟筛选结合基于结构和基于配体的方法进行鉴定,然后重点关注配体亲脂性进行了顺序优化效率。观察到该化合物增加了O的含量-GlcNAcylated细胞中的蛋白质,并显示合适的药代动力学特性和脑通透性。晶体学分析表明该化学系列通过特征性的疏水相互作用与OGA结合,这导致对OGA的高亲和力和中等的亲脂性。化合物5i可以用作有用的化学探针,以帮助建立OGA抑制的概念证明,作为Ota病治疗的治疗靶标。