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BMS-911543
本产品不向个人销售,仅用作科学研究,不用于任何人体实验及非科研性质的动物实验。
CAS NO:1271022-90-2
包装与价格:
包装价格(元)
2 mg电议
5 mg电议
10 mg电议
50 mg电议
100 mg电议
200 mg电议

产品名称
BMS911543
产品介绍
BMS911543 是一种选择性JAK2抑制剂,IC50值为 1.1 nM,对 JAK1、JAK3 和 TYK2 的选择性相对较弱,IC50值分别为 75、360 和 66 nM。

产品描述

BMS-911543 is a potent and selective inhibitor of JAK2 with IC50 of 1.1 nM, ~350-, 75- and 65-fold selective to JAK1, JAK3 and TYK2, respectively. Phase 1/2.

体外活性

BMS-911543 shows potent antiproliferative activity in the SET-2 as well as BaF3-V617F engineered cell lines (both dependent upon JAK2 pathway), with IC50 values of 60 and 70 nM, respectively. The antiproliferative activity of BMS-911543 in SET-2 and BaF3-V617F cells correlates with similar activity on constitutively active pSTAT5 (IC50 80 and 65 nM, respectively). In contrast, non-JAK2-dependent cell lines (A549, MDA-MB-231, MiaPaCa-2) are significantly less sensitive to the inhibitor treatment. The excellent biochemical selectivity versus JAK1/3 translates to good cellular and functional selectivity in an IL-2 mediated T-cell proliferation assay (IC50 990 nM). Also, cell lines that rely on other JAK family members, including CTLL2 and parental BaF3 cells stimulated with IL-3, shows weak antiproliferative activity for BMS-911543 (IC50 2.9 and 3.5 μM, respectively)[1].

体内活性

BMS-911543 suppresses the pSTAT5 levels (mediated by wild type JAK2) relative to vehicle control when stimulated with thrombopoetin (TPO) in a mouse pharmacodynamic model. The responses are dose dependent and results in nearly complete normalization of pSTAT5 levels for 18 h at the highest oral dose of 30 mg/kg. At an intermediate 10 mg/kg oral dose, ~65% reduction is observed up to 18 h, whereas at the 5 mg/kg dose, approximately 50% reduction in pSTAT5 for 8 h is achieved. Observed pSTAT5 reductions correlates with exposures of BMS-911543, with AUC0–8h values of 23, 41, and 109 μM·h, respectively, for dose levels of 5, 10, and 30 mg/kg. In addition, BMS-911543 demonstrates a potent and sustained (2 mg/kg up to 7 h) PD effect in blocking pSTAT5 formation in mice grafted with human SET-2 cells harboring JAK2-V617F mutation. The absolute oral bioavailability in solution is >50% in mice, rats, dogs, and monkeys. In addition, the absorption of BMS-911543 is not significantly impacted by particle dissolution (suspension formulation), with a relative bioavailability (vs solution) of ~60% in rats and ~100% in dogs[1].

Cas No.

1271022-90-2

分子式

C23H28N8O

分子量

432.52

别名

BMS911543

储存和溶解度

DMSO:34 mg/mL (78.6 mM)
H2O:<1 mgml
Ethanol:21 mg/mL (48.6 mM)
Powder: -20°C for 3 years
In solvent: -80°C for 2 years