Synthesis, anti-inflammatory evaluation in vivo and docking studies of some new 5-(benzo[b]furan-2-ylmethyl)-6-methyl-pyridazin-3(2H)-one derivatives

Add time:08/06/2019    Source:sciencedirect.com

Seven novel 5-(benzo[b]furan-2-ylmethyl)-6-methyl-pyridazin-3(2H)-one derivatives (6a to 6g) have been synthesized by the condensation of appropriate 3-(benzofuran-2-ylmethylene)-4-oxopentanoic acid and hydrazine hydrate in ethanol. Structures of all compounds were elucidated by elemental analysis, IR, 1H NMR and 13C NMR. These compounds were tested for their anti-inflammatory activity in carrageenan-induced rat paw edema model. In silico molecular docking study has been executed to study the binding interactions of the synthesized compounds with COX-2 protein. Compounds 6a, 6b, 6e and 6g showed a good anti-inflammatory activity at 50 mg/kg compared with the indometacin at 10 mg/kg and the aspirin at 150 mg/kg and good binding affinity with COX-2.

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