Volume 353, Issue 12 2000118
FULL PAPER

Determination of the inhibition profiles of pyrazolyl–thiazole derivatives against aldose reductase and α-glycosidase and molecular docking studies

Yeliz Demir

Yeliz Demir

Department of Pharmacy Services, Nihat Delibalta Göle Vocational High School, Ardahan University, Ardahan, Turkey

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Parham Taslimi

Parham Taslimi

Department of Biotechnology, Faculty of Science, Bartin University, Bartin, Turkey

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Ümit M. Koçyiğit

Corresponding Author

Ümit M. Koçyiğit

Department of Basic Pharmaceutical Sciences, Division of Biochemistry, Faculty of Pharmacy, Cumhuriyet University, Sivas, Turkey

Correspondence Ümit M. Koçyiğit, Department of Basic Pharmaceutical Sciences, Division of Biochemistry, Faculty of Pharmacy, Cumhuriyet University, 58140-Sivas, Turkey.

Email: [email protected]

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Musa Akkuş

Musa Akkuş

Department of Chemistry, Faculty of Science, Atatürk University, Erzurum, Turkey

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Muhammet Serhat Özaslan

Muhammet Serhat Özaslan

Department of Pharmacy Services, Nihat Delibalta Göle Vocational High School, Ardahan University, Ardahan, Turkey

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Hatice Esra Duran

Hatice Esra Duran

Department of Biochemistry, Medical School, Kafkas University, Kars, Turkey

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Yakup Budak

Yakup Budak

Department of Chemistry, Faculty of Arts and Sciences, Gaziosmanpasa University, Tokat, Turkey

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Burak Tüzün

Burak Tüzün

Department of Chemistry, Faculty of Science, Cumhuriyet University, Sivas, Turkey

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Meliha B. Gürdere

Meliha B. Gürdere

Department of Chemistry, Faculty of Arts and Sciences, Gaziosmanpasa University, Tokat, Turkey

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Mustafa Ceylan

Mustafa Ceylan

Department of Chemistry, Faculty of Arts and Sciences, Gaziosmanpasa University, Tokat, Turkey

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Seyithan Taysi

Seyithan Taysi

Department of Biochemistry and Clinical Biochemistry, Medical School, Gaziantep University, Gaziantep, Turkey

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İlhami Gülçin

İlhami Gülçin

Department of Chemistry, Faculty of Science, Atatürk University, Erzurum, Turkey

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Şükrü Beydemir

Şükrü Beydemir

Department of Biochemistry, Faculty of Pharmacy, Anadolu University, Eskişehir, Turkey

The Rectorate of Bilecik Şeyh Edebali University, Bilecik, Turkey

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First published: 06 August 2020
Citations: 74

Abstract

Aldose reductase (AR) is the first and rate-limiting enzyme of the polyol pathway, which converts glucose to sorbitol in an NADPH-dependent reaction. α-Glycosidase breaks down starch and disaccharides to glucose. Hence, inhibition of these enzymes can be regarded a considerable approach in the treatment of diabetic complications. AR was purified from sheep liver using simple chromatographic methods. The inhibitory effects of pyrazolyl–thiazoles ((3aR,4S,7R,7aS)-2-(4-{1-[4-(4-bromophenyl)thiazol-2-yl]-5-(aryl)-4,5-dihydro-1H-pyrazol-3-yl}phenyl)-3a,4,7,7a-tetrahydro-1H-4,7-methanoisoindole-1,3(2H)-dione derivatives; 3ai) on AR and α-glycosidase enzymes were investigated. All compounds showed a good inhibitory action against AR and α-glycosidase. Among these compounds, compound 3d exhibited the best inhibition profiles against AR, with a Ki value of 7.09 ± 0.19 µM, whereas compound 3e showed the lowest inhibition effects, with a Ki value of 21.89 ± 1.87 µM. Also, all compounds showed efficient inhibition profiles against α-glycosidase, with Ki values in the range of 0.43 ± 0.06 to 2.30 ± 0.48 µM, whereas the Ki value of acarbose was 12.60 ± 0.78 µM. Lastly, molecular modeling approaches were implemented to predict the binding affinities of compounds against AR and α-glycosidase. In addition, the ADME analysis of the molecules was performed.

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