SML2628

NVP-BSK805 Trihydrochloride

≥98% (HPLC)

• Synonym(s): 4-(2,6-Difluoro-4-(3-(1-(piperidin-4-yl)-1H-pyrazol-4-yl)quinoxalin-5-yl)benzyl)morpholine trihydrochloride, 8-(3,5-Difluoro-4-morpholin-4-ylmethyl-phenyl)-2-(1-piperidin-4-yl-1H-pyrazol-4-yl)-quinoxaline trihydrochloride, 8-[3,5-Difluoro-4-(4-morpholinylmethyl)phenyl]-2-[1-(4-piperidinyl)-1H-pyrazol-4-yl]quinoxaline trihydrochloride, BSK 805 3HCl, BSK805, 3HCl, NVP-BSK 805 3HCl
• Empirical Formula (Hill Notation): C₂₇H₂₈F₂N₆O·3HCl
• CAS Number: 2320258-95-3
• Molecular Weight: 599.93
• MDL number: MFCD22419018
• UNSPSC Code: 12352200
• NACRES: NA.77

Properties

• Assay: ≥98% (HPLC)
• form: powder
• color: faint yellow to dark orange
• solubility: H₂O: 2 mg/mL, clear
• storage temp.: −20°C
• SMILES string: Fc1c(c(cc(c1)c3c4nc(cnc4ccc3)c5c[n](nc5)C6CCNCC6)F)CN2CCOCC2
• InChI: 1S/C27H28F2N6O/c28-23-12-18(13-24(29)22(23)17-34-8-10-36-11-9-34)21-2-1-3-25-27(21)33-26(15-31-25)19-14-32-35(16-19)20-4-6-30-7-5-20/h1-3,12-16,20,30H,4-11,17H2
• InChI key: IBPVXAOOVUAOKJ-UHFFFAOYSA-N

Description

Biochem/physiol Actions

NVP-BSK805 is a selective, ATP-competitive (Ki = 0.43 nM) Janus kinase 2 (JAK2) inhibitor (IC50 = 0.58 and 0.56 nM against full-length wild-type and V617F JAK2, respectively) with greatly reduced potency against TYK2, JAK3, JAK1 (IC50 = 10.76, 18.68, 31.63 nM against respective JAK homology domain 1) and >300-fold selectivity over a panel of 36 other kinases. BSK805 potently inhibits STAT5 phosphorylation (by >90% at 100 nM; MB-02 & SET-2 cells) and proliferation in JAK2V617F mutant cultures in vitro (GI50= 39-331 nM; 75% SET-2 growth inhibition at 150 nM) and in Ba/F3 JAK2V617F-bearing mice in vivo (150 mg/kg p.o.). BSK805 daily oral administration is also efficacious against rhEpo-induced splenomegaly and polycythemia in mice (50-100 mg/kg) and rats (25-50 mg/kg) with good pharmacokinetics and oral avilability.

Orally available, ATP-competitive Janus kinase 2 (JAK2) inhibitor with efficacy against JAK2V617F-driven leukemic disease in mice and rats in vivo.

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable