Identification and structure-activity relationship studies of small molecule inhibitors of the human cathepsin D
作者:Sandeep Goyal、Ketul V. Patel、Yadav Nagare、Digambar B. Raykar、Santosh S. Raikar、Atul Dolas、Princy Khurana、Rajath Cyriac、Sharad Sarak、Mukesh Gangar、Anil K. Agarwal、Aditya Kulkarni
DOI:10.1016/j.bmc.2020.115879
日期:2021.1
Cathepsin D, an aspartyl protease, is an attractive therapeutic target for various diseases, primarily cancer and osteoarthritis. However, despite several small molecule cathepsin D inhibitors being developed, that are highly potent, most of them show poor microsomal stability, which in turn limits their clinical translation. Herein, we describe the design, optimization and evaluation of a series of
组织蛋白酶 D 是一种天冬氨酰蛋白酶,是多种疾病(主要是癌症和骨关节炎)的有吸引力的治疗靶点。然而,尽管正在开发几种小分子组织蛋白酶 D 抑制剂,它们非常有效,但其中大多数表现出较差的微粒体稳定性,这反过来限制了它们的临床转化。在此,我们描述了一系列基于组织蛋白酶 D 的新型非肽酰基胍小分子抑制剂的设计、优化和评估。我们命中化合物1a(IC 50 = 29 nM)的优化导致了高效的单磺酰胺类似物4b(集成电路50 = 4 nM),但微粒体稳定性较差(HLM:177 和 MLM:177 μl/min/mg)。为了在保留效力的同时进一步提高微粒体稳定性,我们进行了广泛的构效关系筛选,从而确定了我们优化的先导24e (IC 50 = 45 nM),并提高了微粒体稳定性(HLM:59.1 和 MLM :86.8 微升/分钟/毫克)。我们的努力表明,24e可能是针对组织蛋白酶 D 起重要作用的疾