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  • Title: Design, synthesis, modeling studies and biological evaluation of thiazolidine derivatives containing pyrazole core as potential anti-diabetic PPAR-γ agonists and anti-inflammatory COX-2 selective inhibitors.
    Author: Abdellatif KRA, Fadaly WAA, Kamel GM, Elshaier YAMM, El-Magd MA.
    Journal: Bioorg Chem; 2019 Feb; 82():86-99. PubMed ID: 30278282.
    Abstract:
    Nowadays, diabetes and its associated inflammatory complications are important public health problems worldwide. Market limitations of drugs with dual actions as anti-inflammatory (AI) and anti-diabetic have been led to a temptation for focusing on the discovery and development of new compounds with potential AI and anti-diabetic activities. Herein, we synthesized two new series containing pyrazole ring with vicinal diaryl rings as selective COX-2 moiety and thiazolidindione (series 12a-f) or thiazolidinone (series 13a-f) as anti-diabetic moiety and the two moieties were linked together with methylene or methylenehydrazone functionality. The two series were evaluated for their COX inhibition, AI activity and ulcerogenic liability and for the anti-diabetic activity; 12a-f and 13a-f were assessed in vitro against α-glucosidase, β- glucosidase, in vivo hypoglycemic activity (one day and 15 days studies) in addition to PPARγ activation study. Four compounds (12c, 12f, 13b and 13f) had higher COX-2 S.I. (8.69-9.26) than the COX-2 selective drug celecoxib (COX-2 S.I. = 8.60) and showed the highest AI activities and the lowest ulcerogenicity than other derivatives. Also, two thiazolidindione derivatives 12e and 12f and two thiazolidinone derivatives 13b and 13c showed higher inhibitory activities against α- and β-glucosidase (% inhibitory activity = 62.15, 55.30, 65.37, 59.08 for α-glucosidase and 57.42, 60.07, 58.19, 66.90 for β-glucosidase respectively) than reference compounds (acarbose with % inhibitory activity = 49.50 for α-glucosidase and d-saccharic acid 1,4-lactone monohydrate with % inhibitory activity = 53.42 for β-glucosidase) and also showed good PPAR-γ activation and good hypoglycemic effect in comparison to pioglitazone and rosiglitazone. Moreover, Shape comparison and docking studies were carried out to understand their interaction and similarity with standard drugs.
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