IC50 values of chloroquine–cladinosyl (18 and 19), –aminoquinoline–isatin (20), –imipramine (21 and 22) and –purine (23) hybrids.
| Hybrid | IC50 (nM) ± SD CQR | IC50 (nM) ± SD CQS |
|---|---|---|
| 18(a, b) | 48–295 | 77–636 |
| 19 | 2–9 | 3–11 |
| 20(a–c) | 11.7–24.9 | — |
| 21 | 5 | 3 |
| 22 | 1.6 | 9 |
| 23(a–h) | 80–504 | 61–187 |