Discovery of 3-morpholino-imidazole[1,5-a]pyrazine BTK inhibitors for rheumatoid arthritis
作者:Sobhana Babu Boga、Abdul-Basit Alhassan、Jian Liu、Deodial Guiadeen、Arto Krikorian、Xiaolei Gao、James Wang、Younong Yu、Rajan Anand、Shilan Liu、Chundao Yang、Hao Wu、Jiaqiang Cai、Hugh Zhu、Jagdish Desai、Kevin Maloney、Ying-Duo Gao、Thierry O. Fischmann、Jeremy Presland、My Mansueto、Zangwei Xu、Erica Leccese、Ian Knemeyer、Charles G. Garlisi、Nathan Bays、Peter Stivers、Philip E. Brandish、Alexandra Hicks、Alan Cooper、Ronald M. Kim、Joseph A. Kozlowski
DOI:10.1016/j.bmcl.2017.03.040
日期:2017.8
8-Amino-imidazo[1,5-a]pyrazine-based Bruton’s tyrosine kinase (BTK) inhibitors, such as 6, exhibited potent inhibition of BTK but required improvements in both kinase and hERG selectivity (Liu et al., 2016; Gao et al., 2017). In an effort to maintain the inhibitory activity of these analogs and improve their selectivity profiles, we carried out SAR exploration of groups at the 3-position of pyrazine
基于8-氨基咪唑并[1,5- a ]吡嗪的Bruton酪氨酸激酶(BTK)抑制剂(例如6)表现出对BTK的有效抑制作用,但需要改善激酶和hERG的选择性(Liu等人,2016; Gao等人,2017)。为了维持这些类似物的抑制活性并改善其选择性,我们对吡嗪化合物6的3位进行了SAR勘探。这项工作导致发现了吗啉类作为一种优化的药效团。化合物13,23和38表现出优异的BTK效力,激酶和hERG的选择性和药代动力学曲线。