Table 2.

Inhibition percentage (I%) and IC₅₀ of DPPH and ABTS radicals of compounds 3a-d, and the control ascorbic acid.

Conc. Comd.	DPPH						ABTS
	10 μM	20 μM	75 μM	150 μM	600 μM	IC50	10 μM	20 μM	75 μM	150 μM	600 μM	IC50
3a	10.95	15.87	22.38	32.5	52.6	700	54.55	70.62	78.33	87.97	96.97	3.96
3b	30.95	39.04	49.57	71.63	78.22	48.7	33.8	59.81	76.88	87.74	95.78	15.93
3c	10.7	14.99	25.55	31.88	74.6	240	46.43	63.05	90.51	95.93	98.19	7.43
3d	4.93	11.33	27.08	37.97	55.56	406	68.87	80.34	95.55	97.85	99.14	0.397
Ascorbic acid	37.89	69.72	94.89	95.49	96.39	7.97	60.34	83.99	96.23	98.87	99.1	0.87