Discovery of Potent and Orally Effective Dual Janus Kinase 2/FLT3 Inhibitors for the Treatment of Acute Myelogenous Leukemia and Myeloproliferative Neoplasms
作者:Tao Yang、Mengshi Hu、Wenyan Qi、Zhuang Yang、Minghai Tang、Jun He、Yong Chen、Peng Bai、Xue Yuan、Chufeng Zhang、Kongjun Liu、Yulin Lu、Mingli Xiang、Lijuan Chen
DOI:10.1021/acs.jmedchem.9b01348
日期:2019.11.27
pyrimidin-2-amine derivatives that selectively inhibit Janus kinase 2 (JAK2) and FLT3 kinases. These screening cascades revealed that 18e was a preferred compound, with IC50 values of 0.7 and 4 nM for JAK2 and FLT3, respectively. Moreover, 18e was a potent JAK2 inhibitor with 37-fold and 56-fold selectivity over JAK1 and JAK3, respectively, and possessed an excellent selectivity profile over the other
在这里,我们描述了选择性抑制Janus激酶2(JAK2)和FLT3激酶的一系列独特的4-(1H-吡唑-4-基)-嘧啶-2-胺衍生物的设计,合成和结构活性关系。这些筛选级联显示18e是首选化合物,JAK2和FLT3的IC50值分别为0.7和4 nM。此外,18e是一种有效的JAK2抑制剂,其选择性分别比JAK1和JAK3高37倍和56倍,并且相对于其他100种代表性激酶具有出色的选择性。在一系列基于细胞因子刺激的细胞的测定中,18e表现出比其他JAK亚型更高的JAK2选择性。口服60 mg / kg的18e可显着抑制肿瘤生长,在MV4-11和SET-2异种移植模型中,肿瘤生长抑制率分别为93%和85%。