Table 2.
In vitro Superoxide Anion Radical Scavenging Activity of Compounds 1–30.
| Comp. No. | IC50 (μM ± SEM a) | Comp. No. | IC50 (μM ± SEM a) |
|---|---|---|---|
| 1 | 98.3 ± 1.2 | 16 | NA b |
| 2 | 102.6 ± 1.5 | 17 | NA b |
| 3 | 105.6 ± 1.7 | 18 | NA b |
| 4 | 145 ± 2.1 | 19 | NA b |
| 5 | 170.2 ± 3.2 | 20 | 315.1 ± 8.4 |
| 6 | 175.0 ± 3.5 | 21 | NA b |
| 7 | 180.1 ± 3.8 | 22 | NA b |
| 8 | 190.1 ± 3.9 | 23 | NA b |
| 9 | 208.9 ± 5.4 | 24 | NA b |
| 10 | NA b | 25 | NA b |
| 11 | NA b | 26 | NA b |
| 12 | 210.1 ± 4.4 | 27 | NA b |
| 13 | NA b | 28 | NA b |
| 14 | 260.3 ± 6.4 | 29 | NA b |
| 15 | NA b | 30 | NA b |
| n-propyl gallate c | 106.34 ± 1.6 | ||
a SEM is the standard error of the mean, b NA = Not active, c n-propyl gallate was the standard drug for the superoxide anion radical scavenging assays.