Novel thienopyrimidinones as mGluR1 antagonists

Youngjae Kim, Jeeyeon Kim, Sora Kim, Yooran Ki, Seon Hee Seo, Jinsung Tae, Min Kyung Ko, Hyun Seo Jang, Eun Jeong Lim, Chiman Song, Yoonjeong Cho, Hae Young Koh, Youhoon Chong, Il Han Choo, Gyochang Keum, Sun Joon Min, Hyunah Choo

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There has been much attention to discover mGluR1 antagonists for treating various central nervous system diseases such as seizures and neuropathic pain. Thienopyrimidinone derivatives were designed, synthesized, and biologically evaluated against mGluR1. Among the synthesized compounds, 3-(4-methoxyphenyl)- 7-(o-tolyl)thienopyrimidin-4-one 30 exhibited the most potent inhibitory activity with an IC50 value of 45 nM and good selectivity over mGluR5. Also, the selective mGluR1 antagonist 30 showed marginal hERG channel activity (IC50 = 9.87 μM), good profiles to CYP isozymes, and a good pharmacokinetic profile. Overall, the compound 30 was identified as a selective mGluR1 antagonist with a good pharmacokinetic profile, which is probably devoid of cardiac side effect and drug-drug interactions. Therefore, the compound 30 can be expected to be broadly used as mGluR1 antagonistic chemical probe in in vitro and in vivo study for investigating CNS diseases.

Original languageEnglish
Pages (from-to)629-637
Number of pages9
JournalEuropean Journal of Medicinal Chemistry
Publication statusPublished - 2014 Oct 6


All Science Journal Classification (ASJC) codes

  • Pharmacology
  • Drug Discovery
  • Organic Chemistry

Cite this

Kim, Y., Kim, J., Kim, S., Ki, Y., Seo, S. H., Tae, J., Ko, M. K., Jang, H. S., Lim, E. J., Song, C., Cho, Y., Koh, H. Y., Chong, Y., Choo, I. H., Keum, G., Min, S. J., & Choo, H. (2014). Novel thienopyrimidinones as mGluR1 antagonists. European Journal of Medicinal Chemistry, 85, 629-637.