CDK4 6-IN-3 is a brain-penetrant CDK4 CDK6 inhibitor (Kis: <0.3 nM and 2.2 nM) used for the treatment of glioblastoma. It inhibits CDK1 with a Ki of 110 nM.
CDK7-IN-6 is a highly effective and specific inhibitor (IC50 ≤100 nM) of cyclin-dependent kinase 7 (CDK7). It showcases remarkable selectivity, with more than a 200-fold preference for CDK7 over CDK1, CDK2, and CDK5. This compound holds significant potential for cancer research purposes.
CDK4 6-IN-5 is a highly effective inhibitor of CDK4 and CDK6, with Ki values of 0.2 and 4.4 nM for CDK4 Cyclin D1 and CDK6 Cyclin D3, respectively (WO2019207463A1, example A93).
CDK6 9-IN-1 (compound 66) is a potent dual inhibitor of CDK 6 and CDK 9 that can be administered orally. It exhibits inhibitory activity with IC 50 values of 40.5 nM and 39.5 nM against CDK6 and CDK9, respectively.
CDK12-IN-6, a pyrazolotriazine compound, is a powerful inhibitor of CDK12. Its inhibitory activity is significant with an IC50 value of 1.19 μM when tested at high ATP concentration (2 mM). Notably, CDK12-IN-6 does not exhibit any inhibitory effect on CDK2 Cyclin E (IC50 >20 μM) and CDK9 Cyclin T1 (IC50 >20 μM) when tested under the same high ATP conditions (2 mM) (WO2021116178A1).
CDK4 6-IN-7, a highly potent and selective orally active inhibitor of CDK4 6, demonstrates impressive inhibition activity with IC50 values of 1.58 nM and 4.09 nM respectively. This compound is particularly valuable for breast cancer research [1].