Table 3.

In vitro antioxidant activity of crude and synthetic derivatives using different concentrations of the compounds (50, 75, and 100 µg/mL)

Compound	Concentration (µg/mL)
	50	75	100	IC50
Metronidazole	ns	ns	ns	ns
10a	37.12±0.70	38.21±0.54	38.10±1.72	70.42±0.15
10b	39.14±0.22	40.57±0.32	42.71±0.25	70.52±0.54
10c	65.21±0.26	66.30±0.35	67.21±0.29	85.21±0.85
10d	55.10±0.42	56.24±0.37	27.31±0.35	80.10±0.46
10e	60.21±1.45	62.30±0.20	65.20±0.15	82.52±0.13
10f	61.70±0.31	67.76±0.29	71.98±0.17	70.45±0.12
Ascorbic acid	78.01±0.75	81.01±0.85	84.21±0.41	60.10±0.82
Blank	ns	ns	ns	ns

ns: No scavenging activity; Data are drived from triplicate tests and expressed as mean±SD.