Discovery of orexin 2 receptor selective and dual orexin receptor agonists based on the tetralin structure: Switching of receptor selectivity by chirality on the tetralin ring
作者:Keita Iio、Tsuyoshi Saitoh、Ryuichiro Ohshita、Tsubasa Hino、Mao Amezawa、Yoshiaki Takayama、Yasuyuki Nagumo、Naoshi Yamamoto、Noriki Kutsumura、Yoko Irukayama-Tomobe、Yukiko Ishikawa、Ryuji Tanimura、Masashi Yanagisawa、Hiroshi Nagase
DOI:10.1016/j.bmcl.2022.128555
日期:2022.3
orientation of the amide side chain against the tetralin scaffold (S-configuration) would be selective for OX2R activation, and the downward orientation (R-configuration) would be significant for dual agonist activity. To our best knowledge, there have been no reports thus far that the stereochemistry of one carbon center on the agonist structure regulates the orexin receptor selectivity. Our results would
基于萘型食欲素受体激动剂5的推定结合模式设计和合成了一系列新型1-氨基四氢化萘衍生物,并评估了它们对食欲素受体的激动剂活性。在1-氨基-四氢化萘骨架上引入N-甲基-(3-甲氧基苯基)乙酰胺单元显着增强了激动剂的效力。6的不对称合成表明具有 ( S )-1-氨基-四氢化萘骨架的(–)- 6显示出 OX 2 R 选择性激动剂活性( OX 2 R、OX 1 R/OX 2 R的 EC 50 = 2.69 nM = 461) 但它的对映体 ( R)-(+)- 6显示出有效的 OX 1/2 R 双激动剂活性(OX 1 R 的 EC 50 = 13.5 nM,OX 2 R 的 0.579 nM ,OX 1 R/OX 2 R = 23.3)。这些结果表明,酰胺侧链对四氢化萘支架(S构型)的向上取向对 OX 2 R 激活具有选择性,而向下取向(R-配置)对于双重激动剂活性将是重要的。据我们所知,到目前为