Heterocyclic Cathinones as Inhibitors of Kynurenine Aminotransferase II—Design, Synthesis, and Evaluation

Autor: Michal Maryška, Lucie Svobodová, Wim Dehaen, Martina Hrabinová, Michaela Rumlová, Ondřej Soukup, Martin Kuchař
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Pharmaceuticals, Vol 14, Iss 12, p 1291 (2021)
Druh dokumentu: article
ISSN: 1424-8247
DOI: 10.3390/ph14121291
Popis: Kynurenic acid is a neuroprotective metabolite of tryptophan formed by kynurenine aminotransferase (KAT) catalyzed transformation of kynurenine. However, its high brain levels are associated with cognitive deficit and with the pathophysiology of schizophrenia. Although several classes of KAT inhibitors have been published, the search for new inhibitor chemotypes is crucial for the process of finding suitable clinical candidates. Therefore, we used pharmacophore modeling and molecular docking, which predicted derivatives of heterocyclic amino ketones as new potential irreversible inhibitors of kynurenine aminotransferase II. Thiazole and triazole-based amino ketones were synthesized within a SAR study and their inhibitory activities were evaluated in vitro. The observed activities confirmed our computational model and, moreover, the best compounds showed sub-micromolar inhibitory activity with 2-alaninoyl-5-(4-fluorophenyl)thiazole having IC50 = 0.097 µM.
Databáze: Directory of Open Access Journals