Table 4.
Values of IC50 exhibited by coumarinic derivatives 5a–d.
| Compounds 5 | IC50 (10−9 mol/L) |
|---|---|
| 5a | 92.60 |
| 5b | 82.00 |
| 5c | 8.62 |
| 5d | 9.43 |
| Trolox | 7.35 |
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