cdks

FLT3 CDKs ligand-1 (Compound 14) functions as a ligand for target proteins, promoting the degradation of Cyclin-Dependent Kinases (CDK) and FMS-like tyrosine kinase 3 (FLT3), thereby inhibiting the proliferation and survival of leukemia cells associated with FLT3 CDK. This compound is also used in the synthesis of PROTAC FLT3 CDKs Degrader-1.

LL-K9-3, a selective hydrophobic tagging technology (HyT)-based degrader, specifically targets the CDK9-cyclin T1 complex, displaying DC50 values of 589 nM for cyclin T1 and 662 nM for CDK9. This compound consists of the CDK9 inhibitor, SNS 032, linked to a hydrophobic tag via a glycol linker. Notably, LL-K9-3 does not affect the degradation of other CDKs (CDK1, 2, 4, 5, 6, and 7). Tested in 22RV1 cells, it effectively reduces androgen receptor (AR) and cMyc expression by inducing the selective and synchronous degradation of CDK9 and cyclin T1.