CAS 845272-21-1|Varlitinib

Introduction:Basic information about CAS 845272-21-1|Varlitinib, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.
Common NameVarlitinib
CAS Number845272-21-1Molecular Weight466.943
Density1.5±0.1 g/cm3Boiling Point637.1±65.0 °C at 760 mmHg
Molecular FormulaC22H19ClN6O2SMelting Point/
MSDS/Flash Point339.1±34.3 °C

Names

Name4-N-[3-chloro-4-(1,3-thiazol-2-ylmethoxy)phenyl]-6-N-[(4R)-4-methyl-4,5-dihydro-1,3-oxazol-2-yl]quinazoline-4,6-diamine
SynonymMore Synonyms

Varlitinib BiologicalActivity

DescriptionVarlitinib (ARRY-334543; ASLAN001) is a potent, reversible, small molecule pan-EGFR inhibitor with IC50s of 7, 2, 4 nM for HER1, HER2 and HER4, respectively.
Related CatalogResearch Areas >>Cancer
Target

HER1:7 nM (IC50)

HER2:2 nM (IC50)

HER4:4 nM (IC50)

In VitroIn cell-based assays using tumor cells that over-express EGFR (A431) or ErbB-2 (BT474), Varlitinib (ARRY-334543) potently inhibits substrate phosphorylation. Varlitinib is shown to be highly selective for EGFR/ErbB-2, and does not show any significant activity when screened against a panel of 104 kinases[2].
In VivoVarlitinib treatment potently inhibits tumor growth with complete tumor regression observed at dosing of 100 mg/kg twice a day. After five days of Varlitinib treatment, phosphorylation of HER1-3, RAS/RAF/MEK/MAPK, p70S6K, S6 ribosomal, 4EBP1, Cdk-2, Cdc-2 and retinoblastoma are strongly inhibited. Varlitinib treatment results in a significant reduction in survivin and a concomittant increase in Caspase 3 cleavage products[1]. In murine xenograft models, Varlitinib (ARRY-334543) demonstrates significant dose-related (25, 50, 100 mg/kg) tumor growth inhibition in A431-derived tumors when administered orally, twice a day, for 21 days[2].
Animal AdminMice: The effects of Varlitinib is tested in patient-derived HCC xenograft in SCID mice (HCC29-0909A) with co-expression of HER1, HER2 and HER3 recepors. Mice are treated with Varlitinib when the tumors reach the size of approximately 100-150 mm3. Tumor size measurements are performed twice a week and tumor volumes are calculated[1].
References

[1]. Hsieh C, et al. Varlitinib to demonstrate anti-tumour efficacy in patient-derived hepatocellular carcinoma xenograft models. Journal of Clinical Oncology 34, no. 15_suppl

[2]. Miknis G, et al. ARRY-334543, A potent, orally active small molecule inhibitor of EGFR and ErbB-2.Proc Amer Assoc Cancer Res, Volume 46, 2005

Chemical & Physical Properties

Density1.5±0.1 g/cm3
Boiling Point637.1±65.0 °C at 760 mmHg
Molecular FormulaC22H19ClN6O2S
Molecular Weight466.943
Flash Point339.1±34.3 °C
Exact Mass466.097870
PSA121.79000
LogP3.51
Vapour Pressure0.0±1.9 mmHg at 25°C
Index of Refraction1.742
InChIKeyUWXSAYUXVSFDBQ-CYBMUJFWSA-N
SMILESCC1COC(Nc2ccc3ncnc(Nc4ccc(OCc5nccs5)c(Cl)c4)c3c2)=N1
Storage condition-20℃

Synonyms

4,6-Quinazolinediamine, N-[3-chloro-4-(2-thiazolylmethoxy)phenyl]-N-[(4R)-4,5-dihydro-4-methyl-2-oxazolyl]-
ARRY-543
N-[3-Chloro-4-(1,3-thiazol-2-ylmethoxy)phenyl]-N-[(4R)-4-methyl-4,5-dihydro-1,3-oxazol-2-yl]-4,6-quinazolinediamine
Varlitinib (USAN/INN)
Varlitinib
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