Table 12.
Compound | 69 | 70 |
R | 3,5-Dimethyl-1H-pyrazol-4-yl | Piperazin-1yl |
R′ | Me | H |
IC50 (nM) | ||
CDK9 | 2 | 3 |
CDK1 | 432 | ND |
CDK2 | 910 | 1180 |
CDK4 | 254 | ND |
CDK7 | 56 | NAD |
Cytotoxicity* | 1400 | 1800 |
CDK: cyclin-dependent kinase; IC50: half maximal inhibitory concentration; ND: not determined. *Average of 11 cell lines.