Parsaclisib hydrochloride

• CAT Number: I034242
• CAS Number: 1995889-48-9
• Molecular Formula: C20H23Cl2FN6O2
• Molecular Weight: 469.34
• Purity: ≥95%
• Synonyms: (4R)-4-[3-[(1S)-1-(4-amino-3-methylpyrazolo[3,4-d]pyrimidin-1-yl)ethyl]-5-chloro-2-ethoxy-6-fluorophenyl]pyrrolidin-2-one;hydrochloride
• InChI: InChI=1S/C20H22ClFN6O2.ClH/c1-4-30-18-12(6-13(21)17(22)16(18)11-5-14(29)24-7-11)10(3)28-20-15(9(2)27-28)19(23)25-8-26-20;/h6,8,10-11H,4-5,7H2,1-3H3,(H,24,29)(H2,23,25,26);1H/t10-,11-;/m0./s1
• InChIKey: TWHUONANZMKBKX-ACMTZBLWSA-N
• SMILES: CCOC1=C(C(=C(C=C1C(C)N2C3=NC=NC(=C3C(=N2)C)N)Cl)F)C4CC(=O)NC4.Cl

Parsaclisib hydrochloride (INCB050465 hydrochloride) is a potent, selective and orally active inhibitor of PI3Kδ, with an IC50 of 1 nM at 1 mM ATP. Parsaclisib hydrochloride shows approximately 20000-fold selectivity over other PI3K class I isoforms. Parsaclisib hydrochloride can be used for the research of relapsed or refractory B-cell malignancies[1][2][3].
Parsaclisib (0.1-3000 nM; 4 d) inhibits proliferation of MCL and DLBCL cell lines[2].
Parsaclisib (0.1-1000 nM; 2 h) inhibits anti-IgM-induced pAKT (Ser473) in the Ramos Burkitt’s lymphoma cell line, with an IC50 of 1 nM[2].
Parsaclisib inhibits the proliferation of human, dog, rat, and mouse primary B cells after activation of these receptors, with IC50s ranging from 0.2 to 1.7 nM[2].
Parsaclisib (10 mg/kg; oral gavage twice daily for 7-19 days) inhibits tumor growth in the BALB/c mice bearing the A20 murine lymphoma cells[2].
Parsaclisib (0.1-10 mg/kg; p.o. twice daily) slows Pfeiffer xenograft tumor growth in a dose-dependent manner. And Parsaclisib was well tolerated[2].
Parsaclisib (0.5-1 mg/kg; a single p.o.) inhibits pAKT (Ser473) in Pfeiffer subcutaneous mouse xenograft models[2].

Reference

[1]. Shin N, et al. Abstract 2671: INCB050465, a novel PI3Kδ inhibitor, synergizes with PIM protein kinase inhibition to cause tumor regression in a model of DLBCL. Cancer Research. 2015, Aug. 75(15).

[2]. Shin N, et, al. Parsaclisib Is a Next-Generation Phosphoinositide 3-Kinase δ Inhibitor with Reduced Hepatotoxicity and Potent Antitumor and Immunomodulatory Activities in Models of B-Cell Malignancy. J Pharmacol Exp Ther. 2020 Jul;374(1):211-222.
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[3]. Yue EW, et, al. INCB050465 (Parsaclisib), a Novel Next-Generation Inhibitor of Phosphoinositide 3-Kinase Delta (PI3Kδ). ACS Med Chem Lett. 2019 Oct 17;10(11):1554-1560.
 [Content Brief]