Synthesis, COX-1/2 inhibition activities and molecular docking study of isothiazolopyridine derivatives

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• 作者：Piotr Świątek^a ; ^{piotr.swiatek@umed.wroc.pl} ; Malgorzata Strzelecka^a ; Rafal Urniaz^b ; Katarzyna Gębczak^c ; Tomasz Gębarowski^c ; Kazimierz Gąsiorowski^c ; Wieslaw Malinka^a
• 关键词：Isothiazolopyridine ; Cyclooxygenase inhibition ; Molecular docking
• 刊名：Bioorganic & Medicinal Chemistry
• 出版年：2017
• 出版时间：1 January 2017
• 年：2017
• 卷：25
• 期：1
• 页码：316-326
• 全文大小：2426 K
• 卷排序：25

文摘

One of the main challenges for nowadays medicine is drugs selectivity. In COX-1 and COX-2, the active sites are composed of the same group of amino acids with the exception of the only one residue in position 523, in COX-1 is an isoleucine, while in COX-2 is a valine. Here, we presented a series of isothiazolopyridine/benzisothiazole derivatives substituted differently into an isothiazole ring, which were synthesized and investigated for their potencies to inhibit COX-1 and COX-2 enzymes by colorimetric inhibitor screening assay. All the tested compounds inhibited the activity of COX-1, the effect on COX-2 activity was differential. The mode of binding was characterized by a molecular docking study. Comparing biological activity of the investigated compounds, it was observed that compounds sharing the most similar position to flurbiprofen and meloxicam, representing the two main enzyme subdomains, achieved higher biological activity than others. It is directly related to the fit to the enzyme’s active site, which prevents too early dissociation of the compounds.