1. Academic Validation
  2. Discovery of the first potent and orally available agonist of the orphan G-protein-coupled receptor 52

Discovery of the first potent and orally available agonist of the orphan G-protein-coupled receptor 52

  • J Med Chem. 2014 Jun 26;57(12):5226-37. doi: 10.1021/jm5002919.
Masaki Setoh 1 Naoki Ishii Mitsunori Kono Yuhei Miyanohana Eri Shiraishi Toshiya Harasawa Hiroyuki Ota Tomoyuki Odani Naoyuki Kanzaki Kazunobu Aoyama Teruki Hamada Masakuni Kori
Affiliations

Affiliation

  • 1 Pharmaceutical Research Division, Takeda Pharmaceutical Company Ltd. , 26-1, Muraoka-higashi-2-chome, Fujisawa, Kanagawa 251-8555, Japan.
Abstract

G-protein-coupled receptor 52 (GPR52) is an orphan Gs-coupled G-protein-coupled receptor. GPR52 inhibits dopamine D2 receptor signaling and activates dopamine D1/N-methyl-d-aspartate receptors via intracellular cAMP accumulation, and therefore, GPR52 agonists may have potential as a novel class of antipsychotics. A series of GPR52 agonists with a bicyclic core was designed to fix the conformation of the phenethyl ether moiety of compounds 2a and 2b. 3-[2-(3-Chloro-5-fluorobenzyl)-1-benzothiophen-7-yl]-N-(2-methoxyethyl)benzamide 7m showed potent activity (pEC50 = 7.53 ± 0.08) and good pharmacokinetic properties. Compound 7m significantly suppressed methamphetamine-induced hyperactivity in mice after oral administration of 3 mg/kg without disturbance of motor function.

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