Synthesis, molecular docking and anti-inflammatory screening of novel quinoline incorporated pyrazole derivatives using the Pfitzinger reaction II
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Updated: Apr 18, 2026

Synthesis of pH Dependent Pyrazole, Imidazole, and Isoindolone Dipyrrinone Fluorophores using a Claisen-Schmidt Condensation Approach
Published on: June 10, 2021
Said A H El-Feky1, Zakaria K Abd El-Samii2, Nermine A Osman2
1Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Northern Border University, PO Box 840, Rafha 91911, Saudi Arabia; Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt.
Abstract:
In continuation of our study of novel quinolines with anti-inflammatory activity using the Pfitzinger reaction, several new quinoline derivatives were synthesized and tested for their anti-inflammatory and ulcerogenic effect. A docking study on the COX-2 binding pocket was carried out for the target compounds to rationalize the possible selectivity of them against COX-2 enzyme. The most active compounds (5a, 8a and 11a) were found to be superior to celecoxib. Compound 11a demonstrated the highest anti-inflammatory activity as well as the best binding profiles into the COX-2 binding site. Moreover, compounds 9c, 9e, 10a and 11a were devoid of ulcerogenic activity.

