Discovery of Highly Potent Dual Orexin Receptor Antagonists via a Scaffold-Hopping Approach
作者:Bibia Heidmann、John Gatfield、Catherine Roch、Alexander Treiber、Simone Tortoioli、Christine Brotschi、Jodi T. Williams、Martin H. Bolli、Stefan Abele、Thierry Sifferlen、François Jenck、Christoph Boss
DOI:10.1002/cmdc.201600175
日期:2016.10.6
suvorexant (trade name Belsomra), we successfully identified interesting templates leading to potent dual orexin receptor antagonists (DORAs) via a scaffold‐hopping approach. Structure–activity relationship optimization allowed us not only to improve the antagonistic potency on both orexin 1 and orexin 2 receptors (Ox1 and Ox2, respectively), but also to increase metabolic stability in human liver microsomes
从suvorexant(商品名Belsomra)开始,我们成功地通过脚手架跳跃方法成功地找到了导致有效的双orexin受体拮抗剂(DORA)的有趣模板。结构-活性关系的优化不仅使我们能够改善对orexin 1和orexin 2受体(分别为Ox1和Ox2)的拮抗效力,而且还可以提高人肝微粒体(HLM)的代谢稳定性,减少对时间的抑制作用细胞色素P450(CYP)3A4,并减少P-糖蛋白(Pgp)介导的外排。化合物80 c [(1 S,6 R)-3-(6,7-二氟喹喔啉-2-基)-3,8-二氮杂双环[4.2.0]辛烷-8-基}(4-甲基-[1,1'-联苯] -2-基)甲酮]是一种有效且选择性的DORA,可抑制orexin肽OXA和OXB对Ox1和Ox2的刺激作用。在钙释放试验中,发现80 c在Ox1和Ox2上均表现出无法克服的拮抗作用,同时在大鼠和狗模型中表现出促进睡眠的作用,与基准化合物suvorexant相似。