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DPPH radical scavenging of compounds 5a and 5c.
| Concentration (μM) | Compounds | |
|---|---|---|
| 5a | 5c | |
| 100 | 2.43 ± 1.08 | 2.43 ± 0.61 |
| 500 | 20.31 ± 1.26 *** | 29.34 ± 1.00 *** |
Notes: Data are represented as mean ± SD (n = 3). The values are expressed in percentage of inhibition in relation to control. The asterisks represent significant difference (***) p < 0.001 when compared with control sample by Student–Newman–Keuls test for post-hoc comparison.
