Design and structural optimization of thiadiazole derivatives with potent GLS1 inhibitory activity

Takuya Okada*, Kaho Yamabe, Michiko Jo, Yuko Sakajiri, Tomokazu Shibata, Ryusuke Sawada, Yoshihiro Yamanishi, Daisuke Kanayama, Hisashi Mori, Mineyuki Mizuguchi, Takayuki Obita, Yuko Nabeshima, Keiichi Koizumi, Naoki Toyooka

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

GLS1 is an attractive target not only as anticancer agents but also as candidates for various potential pharmaceutical applications such as anti-aging and anti-obesity treatments. We performed docking simulations based on the complex crystal structure of GLS1 and its inhibitor CB-839 and found that compound A bearing a thiadiazole skeleton exhibits GLS1 inhibition. Furthermore, we synthesized 27 thiadiazole derivatives in an effort to obtain a more potent GLS1 inhibitor. Among the synthesized derivatives, 4d showed more potent GLS1 inhibitory activity (IC50 of 46.7 µM) than known GLS1 inhibitor DON and A. Therefore, 4d is a very promising novel GLS1 inhibitor.

Original languageEnglish
Article number129438
JournalBioorganic and Medicinal Chemistry Letters
Volume93
DOIs
StatePublished - 2023/09/01

Keywords

  • Docking-simulation
  • GLS1 inhibitor
  • Glutaminase
  • Structure–activity relationship
  • Thiaziazole

ASJC Scopus subject areas

  • Biochemistry
  • Molecular Medicine
  • Molecular Biology
  • Pharmaceutical Science
  • Drug Discovery
  • Clinical Biochemistry
  • Organic Chemistry

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