Abstract
Twenty-eight acyl hydrazides (1-28) are subjected for nitric oxide scavenging activities and their structureactivity relationship (SAR) is established. Compounds 1-28 showed a varying degree of activity having IC50 values in the range of 9.1 ± 6.5 - 231.1 μM. It was found that twenty-five (25) out of twenty-eight (28) compounds, showed an excellent nitric oxide scavenging activity. It was observed that the activity mainly depends on the substitution on acyl hyrazide moiety. 3-Propylpyrozole-5-carbohydrazide (27) was found to be the most active in the series with an IC50 value of 9.1 μM. Thus, compound 27 may serve as a lead compound for further development as potent antioxidant agent.
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