Structure-Based Discovery of 4-(6-Methoxy-2-methyl-4-(quinolin-4-yl)-9<i>H</i>-pyrimido[4,5-<i>b</i>]indol-7-yl)-3,5-dimethylisoxazole (CD161) as a Potent and Orally Bioavailable BET Bromodomain Inhibitor
作者:Yujun Zhao、Longchuan Bai、Liu Liu、Donna McEachern、Jeanne A. Stuckey、Jennifer L. Meagher、Chao-Yie Yang、Xu Ran、Bing Zhou、Yang Hu、Xiaoqin Li、Bo Wen、Ting Zhao、Siwei Li、Duxin Sun、Shaomeng Wang
DOI:10.1021/acs.jmedchem.7b00193
日期:2017.5.11
We have designed and synthesized 9H-pyrimido[4,5-b]indole-containing compounds to obtain potent and orally bioavailable BET inhibitors. By incorporation of an indole or a quinoline moiety to the 9H-pyrimido[4,5-b]indole core, we identified a series of small molecules showing high binding affinities to BET proteins and low nanomolar potencies in inhibition of cell growth in acute leukemia cell lines
我们设计并合成了含9H-嘧啶[4,5-b]吲哚的化合物,以获得有效的和口服可生物利用的BET抑制剂。通过将吲哚或喹啉部分掺入9H-嘧啶[4,5-b]吲哚核中,我们鉴定了一系列小分子,它们对BET蛋白显示出高结合亲和力,并且在抑制急性白血病细胞生长方面具有低纳摩尔浓度。细胞系。一种这样的化合物4-(6-甲氧基-2-甲基-4-(喹啉-4-基)-9H-嘧啶[4,5-b]吲哚-7-基)-3,5-二甲基异恶唑(31)在大鼠和小鼠中具有出色的微粒体稳定性和良好的口服药代动力学。口服31在小鼠的MV4; 11白血病和MDA-MB-231三阴性乳腺癌异种移植模型中实现了显着的抗肿瘤活性。用BRD4 BD2鉴定31的共晶体结构为其与BET蛋白的高结合亲和力提供了结构基础。测试其与其他含溴结构域蛋白的结合亲和力表明31是BET蛋白的高度选择性抑制剂。我们的数据表明31是一种有效的,选择性的和口服活性的BET抑制剂。