New 1,3,4-oxadiazole/oxime hybrids: Design, synthesis, anti-inflammatory, COX inhibitory activities and ulcerogenic liability
2017
Abstract A series of new 1,3,4-oxadiazole/oxime hybrids were synthesized and designed as potent COX inhibitors. The prepared compounds were evaluated for their anti-inflammatory, antioxidant and ulcerogenic activities. The results indicated that the prepared compounds exhibited remarkable anti-inflammatory activity with (69.60–109.60% of indomethacin activity) after 4 h. In vitro COX inhibitory assay showed that compounds 6d and 7h are potent COX inhibitors with IC 50 of (1.10–0.94) and (2.30–5.00) µM on both COX-1 and COX-2 respectively. Compound 7h was found to inhibit both COXs non-competitively with K i values of 73 µM and 89 µM. Most of the tested compounds showed ulcer-free stomachs compared to indomethacin.
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