Molecular Formula | C21H24N4O3S |
Molar Mass | 412.51 |
Density | 1.42±0.1 g/cm3(Predicted) |
Boling Point | 634.6±55.0 °C(Predicted) |
Solubility | DMSO:50mg/ml |
Appearance | solid |
Color | Off-white |
pKa | 15.65±0.30(Predicted) |
Storage Condition | -20° |
Stability | Stable for 1 year from date of purchase as supplied. Solutions in DMSO may be stored at -20° for up to 1 month. |
Use | AZ20 is an effective and selective ATR inhibitor with an IC50 value of 5 nM; it can also inhibit mTOR activity with an IC50 value of 38 nM. |
Target | ATR mTOR |
In vitro study | AZ20 shows good selectivity for all PI3K subtypes together with ATM and DNA-PK. In Vitro, AZ20 reduced pChk1 Ser345,pChk1 Ser317 and pChk1 Ser296 levels in a concentration-dependent manner. Prolonged treatment time of AZ20 increased γH2AX nuclear staining, which is an expression of replicative pressure. This is associated with S-phase arrest and increased phosphorylation of histone H3. AZ20 induces growth inhibition and cell death in vitro and its activity is distinct from that of other cytotoxic drugs. The cytotoxic effect of AZ2 is increased when combined with an ATM inhibitor KU-60019. |
In vivo study | Oral administration of AZ20,25 mg/kg twice daily, or 50 mg/kg once daily for 13 days significantly inhibited tumor growth in female nude mice with LoVo tumors. This is related to the widespread persistent elevation of nuclear staining of γH2AX in xenograft tissues, but at therapeutic doses resulting in a transient elevation in mouse bone marrow, indicating the favorable therapeutic properties of az20. AZ20 is an evaluation of drug-drug potential interactions (DDI), specifically inhibition of cytochrome P450 enzymes. AZ20(10 μm) inhibited cytochrome 3A4 mediated midazolam metabolism by 50%. AZ20 has good bioavailability in the rat PK study. |
Reference Show more | 1: Foote KM, Blades K, Cronin A, Fillery S, Guichard SS, Hassall L, Hickson I, Jacq X, Jewsbury PJ, McGuire TM, Nissink JW, Odedra R, Page K, Perkins P, Suleman A, Tam K, Thommes P, Broadhurst R, Wood C. Discovery of 4-{4-[(3R)-3-Methylmorpholin-4-yl]-6-[1-(methylsulfonyl)cyclopropyl]pyrimidin-2-yl}-1H-indole (AZ20): a potent and selective inhibitor of ATR protein kinase with monotherapy in vivo antitumor activity. J Med Chem. 2013 Mar 14;56(5):2125-38. doi: 10.1021/jm301859s. Epub 2013 Mar 1. PubMed PMID: 23394205. |
1mg | 5mg | 10mg | |
---|---|---|---|
1 mM | 2.424 ml | 12.121 ml | 24.242 ml |
5 mM | 0.485 ml | 2.424 ml | 4.848 ml |
10 mM | 0.242 ml | 1.212 ml | 2.424 ml |
5 mM | 0.048 ml | 0.242 ml | 0.485 ml |
biological activity | AZ20 is a potent and selective inhibitor of ATR with an IC50 of 5 nM.. |
characteristics | AZ20 is the first reported inhibitor of ATR protein kinase showing inhibition of tumor growth in vivo. |