Table 3 Inhibitory effects of compounds (4a–f, 5, and 10) on LPS-induced NO production in BV-2 cells.
Entry | Compound | Structure | Yield (%) | IC50(µg/mL)a | Entry | Compound | Structure | Yield (%) | IC50(µg/mL)a | |
|---|---|---|---|---|---|---|---|---|---|---|
1 | 4a |
| 70 | 75.66 | 6 | 4f |
| 78 | 20.21 | |
2 | 4b |
| 89 | >500 | 7 | 5 |
| 31 | >500 | |
3 | 4c |
| 45 | 162.49 | 8 | 10 |
| 65 | 12.57 | |
4 | 4d |
| 80 | >500 | 9 | 6-Shogaolb |
| - | 5.59 | |
5 | 4e |
| 99 | >500 |