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5-(5-(2-(3-aMinopropoxy)-6-Methoxyphenyl)-1H-pyrazol-3-ylaMino)pyrazine-2-carbonitrile hydrochloride

Basic information Safety Supplier Related

5-(5-(2-(3-aMinopropoxy)-6-Methoxyphenyl)-1H-pyrazol-3-ylaMino)pyrazine-2-carbonitrile hydrochloride Basic information

Product Name:
5-(5-(2-(3-aMinopropoxy)-6-Methoxyphenyl)-1H-pyrazol-3-ylaMino)pyrazine-2-carbonitrile hydrochloride
Synonyms:
  • 5-(5-(2-(3-aMinopropoxy)-6-Methoxyphenyl)-1H-pyrazol-3-ylaMino)pyrazine-2-carbonitrile hydrochloride
  • 5-(5-(2-(3-aMinopropoxy)-6-Methoxyphenyl)-1H-pyrazol-3-ylaMino)pyrazine-2-carbonitrile dihydrochloride
  • LY2606368 dihydrochloride
  • LY-2606368 dihydrochloride
  • Prexasertib (LY2606368) 2HCl
  • Prexasertib HCl (LY2606368)
  • Prexasertib dihydrochloride
  • LY-2606368 (Prexasertib)
CAS:
1234015-54-3
MF:
C18H21Cl2N7O2
MW:
438.31104
Mol File:
1234015-54-3.mol
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5-(5-(2-(3-aMinopropoxy)-6-Methoxyphenyl)-1H-pyrazol-3-ylaMino)pyrazine-2-carbonitrile hydrochloride Chemical Properties

storage temp. 
Inert atmosphere,Store in freezer, under -20°C
solubility 
DMSO:12.5(Max Conc. mg/mL);28.52(Max Conc. mM)
form 
Solid
color 
Light yellow to yellow
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5-(5-(2-(3-aMinopropoxy)-6-Methoxyphenyl)-1H-pyrazol-3-ylaMino)pyrazine-2-carbonitrile hydrochloride Usage And Synthesis

Description

Prexasertib HCl is a member of the serine/threonine protein kinase family and is the core protein of cell cycle checkpoints in DNA damage response (DDR).

Uses

Prexasertib dihydrochloride (LY2606368 dihydrochloride) is a selective, ATP-competitive second-generation checkpoint kinase 1 (CHK1) inhibitor with a Ki of 0.9 nM and an IC50 of <1 nM. Prexasertib dihydrochloride inhibits CHK2 (IC50=8 nM) and RSK1 (IC50=9 nM). Prexasertib dihydrochloride causes double-stranded DNA breakage and replication catastrophe resulting in apoptosis. Prexasertib dihydrochloride shows potent anti-tumor activity[1][2].

Biological Activity

Prexasertib HCl is an ATP-competitive inhibitor of CHK1 with a Ki value of 0.9 nM. In cell-free experiments, the IC50 values of it for CHK2 and RSK were 8 nM and 9 nM, respectively.

in vivo

Prexasertib dihydrochloride (LY2606368 dihydrochloride; 1-10 mg/kg; SC; twice daily for 3 days, rest 4 days; for three cycles) causes growth inhibition in tumor xenografts[1].
? Prexasertib dihydrochloride (15 mg/kg; SC) causes CHK1 inhibition in the blood and the phosphorylation of both H2AX (S139) and RPA2 (S4/S8)[1].

Animal Model:Female CD-1 nu-/nu- mice (26-28 g) with Calu-6 cells[1]
Dosage:1, 3.3, or 10 mg/kg
Administration:SC; twice daily for 3 days, rest 4 days; for three cycles
Result:Caused statistically significant tumor growth inhibition (up to 72.3%).
Animal Model:Female CD-1 nu-/nu- mice (26-28 g) with Calu-6 cells[1]
Dosage:15 mg/kg (Pharmacokinetic Analysis)
Administration:SC (200 μL)
Result:CHK1 was 7 ng/mL at 12 hours and 3 ng/mL by 24 hours in plasma exposures.
Phosphorylation of both H2AX (S139) and RPA2 (S4/S8) was detectable at 4 hours, showing the rapid occurrence of DNA damage.

target

< tr>
TargetValue
Chk1
(Cell-free assay)
0.9 nM(Ki)
Chk2
(Cell-free assay)
8 nM
RSK
(Cell-free assay)
9 nM

IC 50

Chk1: 0.9 nM (Ki); Chk1: <1 nM (IC50); Chk2: 8 nM (IC50)

References

[1] King C, et al. LY2606368 Causes Replication Catastrophe and Antitumor Effects through CHK1-Dependent Mechanisms. Mol Cancer Ther. 2015 Sep;14(9):2004-1 DOI:10.1158/1535-7163.MCT-14-1037
[2] Yin Y, et al. Chk1 inhibition potentiates the therapeutic efficacy of PARP inhibitor BMN673 in gastric cancer. Am J Cancer Res. 2017 Mar 1;7(3):473-483. PMID:28401005

5-(5-(2-(3-aMinopropoxy)-6-Methoxyphenyl)-1H-pyrazol-3-ylaMino)pyrazine-2-carbonitrile hydrochlorideSupplier

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5-(5-(2-(3-aMinopropoxy)-6-Methoxyphenyl)-1H-pyrazol-3-ylaMino)pyrazine-2-carbonitrile hydrochloride(1234015-54-3)Related Product Information