Oxadiazole Derivatives as Dual Orexin Receptor Antagonists: Synthesis, Structure–Activity Relationships, and Sleep‐Promoting Properties in Rats
作者:Christine Brotschi、Catherine Roch、John Gatfield、Alexander Treiber、Jodi T. Williams、Thierry Sifferlen、Bibia Heidmann、Francois Jenck、Martin H. Bolli、Christoph Boss
DOI:10.1002/cmdc.201900242
日期:2019.7.3
The orexin system plays an important role in the regulation of wakefulness. Suvorexant, a dual orexin receptor antagonist (DORA) is approved for the treatment of primary insomnia. Herein, we outline our optimization efforts toward a novel DORA. We started our investigation with rac‐[3‐(5‐chloro‐benzooxazol‐2‐ylamino)piperidin‐1‐yl]‐(5‐methyl‐2‐[1,2,3]triazol‐2‐ylphenyl)methanone (3), a structural hybrid
食欲素系统在觉醒的调节中起重要作用。Suvorexant,一种双orexin受体拮抗剂(DORA)被批准用于治疗原发性失眠。在此,我们概述了针对新型DORA的优化工作。我们以rac- [3-(5-氯-苯并恶唑-2-基氨基)哌啶-1-基]-(5-甲基-2- [1,2,3]三唑-2-基苯基)甲酮开始研究。3),它是suvorexant和含哌啶的DORA的结构杂交体。在优化过程中,我们解决了化学不稳定,CYP3A4抑制和低脑渗透潜能等问题。此外,哌啶支架的结构修饰对于提高对orexin 2受体的效力至关重要。这项工作导致鉴定出(5-甲氧基-4-甲基-2- [1,2,3]三唑-2-基苯基)-(S)-2- [5-(2-三氟甲氧基苯基)-[1 ,2,4]恶二唑-3-基]吡咯烷-1-基}甲酮(51),一种有效的,可穿透脑的DORA,在大鼠体内的功效类似于suvorexant。