CDK IN 6

CDK-IN-6, a pyrazolo[1,5-a]pyrimidine compound, exhibits potent anticancer activities as a CDK inhibitor[1].

Abemaciclib metabolite M20 (CDK4/6-IN-4) is an active metabolite of Abemaciclib. Abemaciclib metabolite M20 is a selective CDK4/6 inhibitor and can be used for researches on the treatment of cancer.

CDK4/6-IN-2 is a potent inhibitor of CDK4 and CDK6 [IC50s: 2.7 and 16 nM].

CDK4/6-IN-3, a brain-penetrant CDK4/CDK6 inhibitor (Kis: <0.3 nM and 2.2 nM), is used for the treatment of glioblastoma and inhibits CDK1 with a Ki of 110 nM.

CDK4/6/HDAC-IN-1 (Compound N14) is a dual-target inhibitor of CDK4/6 and HDAC, with IC50 values of 7.23 nM for CDK4, 13.20 nM for CDK6, 55.66 nM for HDAC1, and 48.38 nM for HDAC6. It induces apoptosis and G0/G1 phase arrest through the HDAC-p21-CDK signaling pathway and can inhibit hepatocellular carcinoma.

Roccellic acid is a lichen secondary metabolite that has been found in R. montagnei and has antibacterial and anticancer activities.1,2 It is active against the bacteria S. gordonii and P. gingivalis (MIC = 46.9 μg/ml for both).1 Roccellic acid (100 μg/ml) inhibits proliferation of MDA-MB-231, MCF-7, and DLD-1 cancer cells by 65.3, 75.8, and 87.9%, respectively.2 |1. Sweidan, A., Chollet-Krugler, M., Sauvager, A., et al. Antibacterial activities of natural lichen compounds against Streptococcus gordonii and Porphyromonas gingivalis. Fitoterapia 121, 164-169 (2017).|2. Mishra, T., Shukla, S., Meena, S., et al. Isolation and identification of cytotoxic compounds from a fruticose lichen Roccella montagnei, and it's in silico docking study against CDK-10. Rev. Bras. Farmacogn. 27(6), 724-728 (2017).

XY028-140 is a selective CDK4/CDK6 degrade and inhibits both CDK4/6 expression and activity in cancer cells. XY028-140 is a PROTAC connected by ligands for Cereblon and CDK.

LSN3106729 hydrochloride, the metabolite of Abemaciclib , is a CDK inhibitor with antitumor activity. LSN3106729 hydrochloride and a CRBN ligand have been used to design PROTAC CDK4/6 degrader[1]. [1]. Edward S. Kim, et al. Abemaciclib in Combination with Single-Agent Options in Patients with Stage IV Non-Small Cell Lung Cancer: A Phase Ib Study. [2]. Nathanael Gray, et al. Degradation of cyclin-dependent kinase 4/6 (cdk4/6) by conjugation of cdk4/6 inhibitors with e3 ligase ligand and methods of use. WO2017185031A1.

6-Chloro-2-fluoropurine is a heterocyclic building block.1,2It has been used in the synthesis of purine nucleosides that inhibit cyclin-dependent kinases (CDKs)in vitro.16-Chloro-2-fluoropurine has also been used in the synthesis of purine nucleosides that are active against HIV-1 and hepatitis B virus (HBV)in vitro.2 1.Wilson, S.C., Atrash, B., Barlow, C., et al.Design, synthesis and biological evaluation of 6-pyridylmethylaminopurines as CDK inhibitorsBioorg. Med. Chem.19(22)6949-6965(2011) 2.Lee, K., Choi, Y., Gullen, E., et al.Synthesis and anti-HIV and anti-HBV activities of 2'-fluoro-2',3'-unsaturated L-nucleosidesJ. Med. Chem.42(7)1320-1328(1999)

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 nM for CDK4/Cyclin D1 and 4.4 nM for CDK6/Cyclin D3 (WO2019207463A1, example A93).

CDK6/9-IN-1 (compound 66) is a potent, orally administered dual inhibitor of CDK6 and CDK9, with IC50 values of 40.5 nM and 39.5 nM, 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).

CDK/HDAC-IN-1 exhibits potent inhibitory activity towards CDK2/4/6 and HDAC6, with IC50 values of 60.9 ± 2.9 nM, 276 ± 22.3 nM, 27.2 ± 4.2 nM, and 128.6 ± 0.4 nM, respectively.

CDK/HDAC-IN-2 is a potent dual HDAC/CDK inhibitor that acts on HDAC1 (IC50: 6.4 nM), HDAC2 (IC50: 0.25 nM), HDAC3 (IC50: 45 nM), HDAC6 and 8 (IC50 > 1000 nM), CDK1 (IC50: 8.63 nM), CDK2 (IC50: 0.30 nM), and CDK4, 6, and 7 (IC50 > 1000 nM). CDK/HDAC-IN-2 can arrest the cell cycle in the G2/M phase and induce apoptosis, demonstrating excellent anti-proliferative and significant anti-tumor effects.

AG-012986 is a multitargeted cyclin-dependent kinase (CDK) inhibitor active against CDK1, CDK2, CDK4/6, CDK5, and CDK9, with selectivity over a diverse panel of non-CDK kinases. AG-012986 showed antiproliferative activities in vitro with IC(50)s of <100 nmol/L in 14 of 18 tumor cell lines. In vivo, significant antitumor efficacy induced by AG-012986 was seen (tumor growth inhibition, >83.1%) in 10 of 11 human xenograft tumor models. AG-012986 also showed dose-dependent retinoblastoma Ser(795) hypophosphorylation, cell cycle arrest, decreased Ki-67 tumor staining, and apoptosis in conjunction with antitumor activity.

AG-012986 HCl is a multitargeted cyclin-dependent kinase (CDK) inhibitor active against CDK1, CDK2, CDK4/6, CDK5, and CDK9, with selectivity over a diverse panel of non-CDK kinases. AG-012986 HCl showed antiproliferative activities in vitro with IC(50)s of <100 nmol/L in 14 of 18 tumor cell lines. In vivo, significant antitumor efficacy induced by AG-012986 HCl was seen (tumor growth inhibition, >83.1%) in 10 of 11 human xenograft tumor models. AG-012986 HCl also showed dose-dependent retinoblastoma Ser(795) hypophosphorylation, cell cycle arrest, decreased Ki-67 tumor staining, and apoptosis in conjunction with antitumor activity.

AG-12286 is a pan-CDK inhibitor. AG-012986 may be useful in the treatment of tumors by inhibiting p38 MAPK phosphorylation. Note: many vendors confused the structure of AG-12286 (CAT#573461, CAS# 223784-75-6) with AG-012986 (CAT#406184, CAS# is 486414-35-1).

CDK4/6-IN-14 is a potent, highly selective inhibitor of Cyclin-Dependent Kinases 4 and 6 (CDK4/6), with inhibition concentrations (IC50s) of 10 nM and 16 nM, respectively. It shows over 60-fold selectivity for CDK4/6 compared to CDKs 1, 2, 7, and 9, and exhibits significant selectivity against 205 other kinases.

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