Table 5. Kinase-Inhibitory and Antiproliferative Activities of Imidazo[1,2-b]pyridazine Derivatives.
| IC50 (μM)a |
GI50 (μM)a |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| FLT3-ITD | FLT3-D835Y | CDK2/E | MV4-11 | MOLM-13 | SEM | CEM | NOMO-1 | ML-2 | K562 | |
| 29a | 0.002 | 0.002 | 0.003 | 0.0001 | 0.004 | 0.008 | 0.623 | 0.240 | 0.118 | 0.320 |
| 29b | 0.005 | 0.004 | 0.037 | 0.001 | 0.024 | 0.225 | 1.073 | 1.380 | 0.596 | 0.722 |
| 30 | 0.006 | 0.012 | 0.211 | 0.279 | 0.070 | 0.655 | 1.910 | 4.875 | 3.100 | 1.363 |
For SD values, see Table S3 in the Supporting Information.