Design, Synthesis of Pyridine Based Thiazolidine Derivatives and Investigation of Antimicrobial Activity Targeting Ergosterol Biosynthesis via In Vitro and In Silico Approaches


KAYA A. Z., EVREN A. E., GÜL Ü. D., TEMEL H. E., YURTTAŞ L.

Chemical Biology and Drug Design, vol.108, no.1, 2026 (SCI-Expanded, Scopus)

  • Publication Type: Article / Article
  • Volume: 108 Issue: 1
  • Publication Date: 2026
  • Doi Number: 10.1111/cbdd.70356
  • Journal Name: Chemical Biology and Drug Design
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, BIOSIS, Chemical Abstracts Core, EMBASE, MEDLINE, Academic Search Ultimate (EBSCO), Biomedical Reference Collection: Corporate Edition (EBSCO)
  • Keywords: antimicrobial effect, CYP19A1, CYP51A1, pyridine, thiazole
  • Anadolu University Affiliated: Yes

Abstract

Pyridine and thiazolidine ring systems are unique heterocyclic rings since they are present in the structure of various drug/drug-like molecules and reported in many studies for their distinct biological effects. It is of interest to pharmaceutical chemists because of their chemotherapeutic effect profiles such as antibacterial, antifungal, antiviral, and anticancer; briefly, their cytotoxic effects are very interesting. Because of these cytotoxic activities, in this project, we synthesized chalcone derivatives from the 5th position of the thiazolidin-4-one and its linking pyridine by the hydrazone bridge. The antibacterial activities of the resulted compounds on different gram (+) and (−) bacteria and their antifungal activities tested against several invasive fungi. Due to significant fungistatic activity, the inhibitory activity on lanosterol demethylase (LDM, 5TZ1, CYP51A1) and aromatase (3EQM, CYP19A1) enzymes was evaluated, and in silico approaches were used to clarify and explain the binding modes, and then the structure activity relationship (SAR) was reported. Results of the study indicated that designed molecules were successfully obtained with important antifungal activity, and the mechanism of action was clarified.