Table 2.
Inhibitory activity of isolated compounds (mean ± RSD) against human immunodeficiency virus (HIV)-1 protease (n = 3).
| Compound No. | Compound Name | 1.0 mg/mL | 0.1 mg/mL | 0.01 mg/mL | IC50 (μM) |
|---|---|---|---|---|---|
| 1 | β-Sitosterol | - | - | - | - |
| 2 | 5,5′-Dibutoxy-2,2′-bifuran | - | - | - | - |
| 3 | Nonacosane-10-ol | - | - | - | - |
| 4 | Ethyl (3β)-3,23-dihydroxyolean-12-en-28-oate | - | - | - | - |
| 5 | Oleanonic acid | - | - | - | - |
| 6 | Ethyl caffeate | 100 ± 12.8% | 26.8 ± 1.6% | - | 1.0 |
| 7 | Caffeic acid | 90.2 ± 7.3% | 17.3 ± 5.7% | - | 1.5 |
| 8 | Isovanillin | 61.2 ± 2.8% | 20.1 ± 4.6% | - | 3.5 |
| 9 | Hederagenin | - | - | - | - |
| Positive control | Pepstatin A | 53.2 ± 3.6% (0.02 μM) |
39.2 ± 1.8% (0.002 μM) |
29.1 ± 12.5% (0.0002 μM) |
0.016 |