Synthesis, α‑Glucosidase, α‑Amylase, and Aldol Reductase Inhibitory Activity with Molecular Docking Study of Novel Imidazo[1,2‑a]pyridine Derivatives

• Published in: ACS omega 2024-10, Vol.9 (42), p.42905-42914
• Main Authors: Kaya, Betül, Acar Çevik, Ulviye, Çiftçi, Bilge, Duran, Hatice Esra, Türkeş, Cüneyt, Işık, Mesut, Bostancı, Hayrani Eren, Kaplancıklı, Zafer Asım, Beydemir, Şükrü
• Format: Article
• Language: English
• ISSN: 2470-1343; 2470-1343
• DOI: 10.1021/acsomega.4c05619

Inhibition ofaldose reductase (AR), α-glycosidase (α-GLY), and α-amylase (α-AMY) are some of the essential targets in diabetes mellitus (DM). Here, a series of imidazo­[1,2-a]­pyridine-based 1,3,4-thiadiazole derivatives (8a–k) were successfully synthesized and characterized using 1H NMR, 13C NMR, and HRMS spectroscopic techniques. The inhibition effects of the synthesized derivatives against AR, α-GLY, and α-AMY were evaluated using both in vitro and in silico methods. In vitro studies revealed that the derivatives (8a–k) showed significant inhibition activity. The results showed that the novel derivatives (8a–k) demonstrated potential inhibitory activity, with K I values covering the following ranges: 23.47 ± 2.40 to 139.60 ± 13.33 nM for AR and 6.09 ± 0.37 to 119.80 ± 12.31 μM for α-GLY, with IC50 values 81.14 to 153.51 μM for α-AMY. Furthermore, many of these compounds exhibited high inhibition activity, while some of them showed higher potency than the reference compounds. Molecular docking of the target compounds was carried out in the active sites of AR (PDB ID: 4JIR) and α-GLY (PDB ID: 5NN8).