cdk12

CDK12-IN-3 is a selective and potent CDK12 inhibitor with anti-tumor activity, which can be used to study malignant tumors.

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).

CDK12-IN-5 is a potent CDK12 inhibitor with potential anticancer and antitumor activity, and can be used orally in the study of breast and ovarian cancer.

CDK12-IN-2 (CDK12 inhibitor 2) is an effective and selective inhibitor of CDK12 with an IC50 of 52 nM, >100 μM, >10 μM and 16 μM for CDK12, CDK2, CDK7, and CDK9. CDK12-IN-2 can be used in studies about the function of CDK12.

CDK12-IN-E9 is a potent and selective covalent inhibitor of CDK12 and a non-covalent inhibitor of CDK9, while avoiding ABC transporter-mediated efflux. It exhibits weak binding to the CDK7 CyclinH complex (IC50> 1 μM).

CDK12-IN-4, a pyrazolotriazine compound, exhibits potent inhibition of CDK12 by achieving an IC50 value of 0.641 μM, utilizing high ATP levels (2 mM). Notably, CDK12-IN-4 does not impact CDK2 Cyclin E (IC50 > 20 μM) or CDK9 Cyclin T1 (IC50 > 20 μM) under the influence of high ATP (2 mM) levels (WO2021116178A1).

PROTAC CDK12 13 Degrader-1 (7f) is a potent and selective dual degrader of the cell cycle protein-dependent kinases CDK12 (DC50: 2.2 nM) and CDK13 (DC50: 2.1 nM), used in the context of breast cancer.

CDK-IN-12 (Example 20), a CDK inhibitor, effectively inhibits CDK4/6, demonstrating IC50 values below 20 nM [1].

SY-5609 is a selective and noncovalent inhibitor of CDK7(KD = 0.065 nM) with antitumor activity and inhibits apoptosis.

dCeMM3 (2-(1H-benzimidazol-2-ylsulfanyl)-N-(5-chloropyridin-2-yl)acetamide) is a glue degrader. dCeMM3 prompts an interaction of CDK12-cyclin K with a CRL4B ligase complex, result in inducing ubiquitination and degradation of cyclin K.

THZ1 (CDK7 inhibitor) is a novel selective and potent covalent CDK7 inhibitor.

BSJ-4-116 is a highly potent and selective CDK12 degrader (PROTAC) with an IC50 of 6 nM. It downregulates DDR genes through a premature termination of transcription, primarily through increasing poly(adenylation).

THZ531 is a covalent inhibitor of both CDK12(IC50=158 nM) and CDK13(IC50=69 nM).

SR-4835 is a highly selective dual inhibitor of CDK12 and CDK13(CDK12: IC50=99 nM, Kd=98 nM; CDK13: Kd=4.9 nM), which disables triple-negative breast cancer (TNBC) cells

PARP-1 2-IN-2-IN-1 (Compound 12e) effectively inhibits PARP1 2 and CDK12 with IC50 values of 34 nM, 30 nM, and 285 nM respectively, impairing DNA damage repair and inducing cell cycle arrest and apoptosis. This compound also hampers the proliferation of TNBC cells and the growth of TNBC xenograft tumors [1].

CDK HDAC-IN-3 is an orally active dual inhibitor of HDACs and CDKs, offering potent and selective inhibition of CDK9, CDK12, CDK13, HDAC1, HDAC2, and HDAC3, with IC50 values of 98.32 nM, 98.85 nM, 100 nM, 62.12 nM, 93.28 nM, and 82.87 nM, respectively, and is applicable in the treatment of acute myeloid leukemia (AML) [1].

SHR5428 is an orally active, selective, noncovalent inhibitor of CDK7, displaying potent enzymatic inhibition (IC50 = 2.3 nM) and effectively suppressing cellular activity in triple-negative breast cancer MDA-MB-468 cells (IC50 = 6.6 nM) [1].

YKL-5-124 TFA, a potent and selective irreversible covalent inhibitor of CDK7, demonstrates IC50 values of 53.5 nM for CDK7 and 9.7 nM for the CDK7/Mat1/CycH complex. It exhibits over 100-fold selectivity for CDK7 over CDK9 and CDK2, while showing no activity against CDK12 and CDK13. This compound effectively induces cell-cycle arrest, inhibits E2F-driven gene expression, and has minimal impact on the phosphorylation status of RNA polymerase II.

HQ461 is a molecular glue that promotes CDK12-DDB1 interaction, triggering cyclin K degradation, decreased CDK12 substrate phosphorylation, downregulation of DNA damage response genes, and cell death.

MFH290 is a novel cysteine (Cys)-directed covalent inhibitor of CDK12/13. MFH290 forms a covalent bond with Cys-1039 of CDK12, exhibits excellent kinome selectivity, inhibits the phosphorylation of serine-2 in the C-terminal domain (CTD) of RNA-polymerase II (Pol II), and reduces the expression of key DNA damage repair genes. Importantly, these effects were demonstrated to be CDK12-dependent as mutation of Cys-1039 rendered the kinase refractory to MFH290 and restored Pol II CTD phosphorylation and DNA damage repair gene expression. Consistent with its effect on DNA damage repair gene expression, MFH290 augments the antiproliferative effect of the PARP inhibitor olaparib.

dCeMM2 is a glue degrader. dCeMM2 prompts an interaction of CDK12-cyclin K with a CRL4B ligase complex, leading to the ubiquitination and degradation of cyclin K.

Antitumor Agent-104 (Compound 9) serves as an antineoplastic by impeding DNA repair mechanisms in tumor cells, primarily through the inhibition of PARP1 enzyme activity and reduction of PAR protein levels. Additionally, it suppresses CDK12 expression [1].

CDK7 12-IN-1 is a selective inhibitor of CDK7 (IC50: 3 nM) and CDK12 (IC50: 277 nM) and effectively inhibits tumor growth.

THZ1 Hydrochloride is a potent, selective covalent inhibitor of CDK7, exhibiting an IC50 value of 3.2 nM. It also targets closely related kinases CDK12 and CDK13, leading to the downregulation of MYC expression.

BSJ-01-175 is a selective and potent covalent inhibitor of CDK12/13. BSJ-01-175 is significantly selective for cancer cells, exhibits potent inhibition of phosphorylated RNA polymerase II, and significantly downregulates CDK12 target genes.

CDK-IN-9 (compound 24) is a potent inhibitor of CDK and acts on CDK2 E (IC50: 4 nM). It functions as a molecular gel that induces interaction between CDK12 and DDB1, and can dephosphorylate retinoblastoma protein and RNA polymerase II, thereby inducing apoptosis.

NCT02, a cyclin K degrader, promotes the ubiquitination and proteasomal degradation of cyclin K (CCNK) and its complex partner CDK12, showing promise for metastatic colorectal cancer (CRC) research[1].

dCeMM4 (Compound 5) is a glue degrader that promotes cyclin K ubiquitination and degradation by facilitating the interaction between CDK12-cyclin K and a CRL4B ligase complex [1].

YKL-5-124, a potent, selective and covalent CDK7 inhibitor with an IC50 of 9.7 nM, 1300 nM and 3020 nM for CDK7/Mat1/CycH, CDK2 and CDK9 respectively, displays biochemical and cellular selectivity for CDK7 over CDK12/13.

CDK7-IN-20 is a potent, selective, and irreversible inhibitor of Cyclin-Dependent Kinase 7 (CDK7) with an IC50 value of 4 nM, exhibiting over 206-fold selectivity against related kinases [CDK1, CDK2, CDK3, CDK5, CDK6, CDK9, and CDK12]. It holds potential for research into autosomal dominant polycystic kidney disease (ADPKD).

FMF-06-098-1 is a multitargeted depressant that promotes the degradation of various kinases including AAK1, ABL2, AURKA, AURKB, BUB1B, CDC7, CDK1, CDK12, CDK13, CDK2, CDK4, CDK6, CDK7, CDK9, CHEK1, CSNK1D, EPHA1, PAK, FGFR1, GAK, IRAK4, ITK, LIMK2, MAP4K2, MAP4K3, MAPK6, MAPK7, MARK4, MELK, PKN3, PLK4, PRKAA1, PTK2, PTK6, RPS6KA4, SGK2, STK35, TNK2, UHMK1, ULK1, and WEE1 [1].

PP-C8, a potent and selective PROTAC CDK12-Cyclin K degrader, efficiently induces degradation of CDK12 and Cyclin K, with DC50 values of 416 nM and 412 nM, respectively. This compound exhibits significant synergistic antiproliferative effects when combined with a PARP inhibitor in triple-negative breast cancer (TNBC) [1].