Design and Synthesis of Non-Peptide, Selective Orexin Receptor 2 Agonists

Takashi Nagahara, Tsuyoshi Saitoh, Noriki Kutsumura, Yoko Irukayama-Tomobe, Yasuhiro Ogawa, Daisuke Kuroda, Hiroaki Gouda, Hidetoshi Kumagai, Hideaki Fujii, Masashi Yanagisawa, Hiroshi Nagase

Research output: Contribution to journalArticlepeer-review

85 Scopus citations


Orexins are a family of neuropeptides that regulate sleep/wakefulness, acting on two G-protein-coupled receptors, orexin receptors 1 (OX1R) and 2 (OX2R). Genetic and pharmacologic evidence suggests that orexin receptor agonists, especially OX2R agonist, will be useful for mechanistic therapy of the sleep disorder narcolepsy/cataplexy. We herein report the discovery of a potent (EC50 on OX2R is 0.023 μM) and OX2R-selective (OX1R/OX2R EC50 ratio is 70) agonist, 4′-methoxy-N,N-dimethyl-3′-[N-(3-{[2-(3-methylbenzamido)ethyl]amino}phenyl)sulfamoyl]-(1,1′-biphenyl)-3-carboxamide 26.

Original languageEnglish (US)
Pages (from-to)7931-7937
Number of pages7
JournalJournal of Medicinal Chemistry
Issue number20
StatePublished - Aug 12 2015

ASJC Scopus subject areas

  • Molecular Medicine
  • Drug Discovery


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