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].