Table 4.

The ABTS scavenging ability (EC₅₀ mg/mL) of the derivatives 6a, 6b, 7a_1–7, 7b_1–7.

Sample	EC50 mg/mL	Sample	EC50 mg/mL
6a	0.074 ± 0.0039	6b	0.069 ± 0.0031
7a1	0.047 ± 0.0032	7b1	0.048 ± 0.0014
7a2	0.049 ± 0.0026	7b2	0.041 ± 0.0041
7a3	0.037 ± 0.0015	7b3	0.031 ± 0.0035
7a4	0.043 ± 0.0028	7b4	0.040 ± 0.0029
7a5	0.027 ± 0.0017	7b5	0.024 ± 0.0047
7a6	0.025 ± 0.0012	7b6	0.021 ± 0.0041
7a7	0.036 ± 0.0098	7b7	0.030 ± 0.0017
AA	0.0055 ± 0.0024

Data are mean ± SD (n = 3, p< 0.05).