
dihydrochloride is a potent and selective quinoxaline JAK2 inhibitor with nM for JAK2 JH1, FL JAK V617F and FL JAK2 wt, respectively. displays more than 20-fold selectivity over the other JAK family members over a panel of kinases in vitro. NVP-BSK805 has less inhibitory activity JAK3 JH1 (IC50=18.7 nM). In proliferation assays with most of Ba/F3-based dihydrochloride blocks the growth of JAKV617F cells and induces