Design and synthesis of novel orexin 2 receptor agonists based on naphthalene skeleton
作者:Tsubasa Hino、Tsuyoshi Saitoh、Yasuyuki Nagumo、Naoshi Yamamoto、Noriki Kutsumura、Yoko Irukayama-Tomobe、Yukiko Ishikawa、Ryuji Tanimura、Masashi Yanagisawa、Hiroshi Nagase
DOI:10.1016/j.bmcl.2022.128530
日期:2022.3
A novel series of naphthalene derivatives were designed and synthesized based on the strategy focusing on the restriction of the flexible bond rotation of OX2R selective agonist YNT-185 (1) and their agonist activities against orexin receptors were evaluated. The 1,7-naphthalene derivatives showed superior agonist activity than 2,7-naphthalene derivatives, suggesting that the bent form of 1 would be
基于限制OX 2 R 选择性激动剂YNT-185 ( 1 )的柔性键旋转的策略,设计合成了一系列新型萘衍生物,并评估了它们对食欲素受体的激动剂活性。1,7-萘衍生物显示出比 2,7-萘衍生物更好的激动剂活性,表明1的弯曲形式将有利于激动剂的活性。1,7-萘衍生物的构象分析表明,酰胺单元从萘平面扭曲出来对于提高活性很重要。在 1,7-萘环的 2 位上引入甲基有效地增加了活性,这导致了强效 OX 2 R 激动剂28c的发现(OX 2 R 的EC 50 = 9.21 nM,OX 2 R 的 148 nM OX 1 R)。最有效的衍生物28c与激动剂结合的 OX 2的活性状态的对接模拟结果的比较很好地支持了构效关系结果R cryo-EM SPA 结构。这些结果为了解食欲素受体激动剂中药效团的活性构象和方向提供了重要信息,预计食欲素受体激动剂可作为治疗发作性睡病的化学治疗剂。