申请人:SHANGHAI PHARMACEUTICALS HOLDING CO., LTD.
公开号:US10662186B2
公开(公告)日:2020-05-26
The present invention discloses a nitrogen-containing fused heterocyclic compound, as well as a preparation method, intermediate, composition and application thereof. The nitrogen-containing fused heterocyclic compound of the present invention as represented by formula (I), as well as the pharmaceutically acceptable salt, enantiomer, diastereomer, tautomer, solvate, metabolite or drug precursor thereof, exhibit a high selectivity and a high inhibitory activity with respect to CDK4 and CDK6 at a molecular level, an excellent inhibitory activity with respect to breast cancer cells at a cellular level, and significant inhibition of tumor cell proliferation associated with cyclin-dependent kinase activity at an animal level. The invention also exhibits a good stability with respect to human or mouse liver microsomes without significant inhibition of metabolic enzymes, good in vivo absorption in mice and rats, a high bioavailability and good druggability.
本发明公开了一种含氮融合杂环化合物及其制备方法、中间体、组合物和应用。本发明的由式(I)表示的含氮融合杂环化合物及其药学上可接受的盐、对映体、非对映体、同分异构体、溶媒、代谢物或药物前体、在分子水平上对 CDK4 和 CDK6 具有高选择性和高抑制活性,在细胞水平上对乳腺癌细胞具有优异的抑制活性,在动物水平上显著抑制与细胞周期蛋白依赖性激酶活性相关的肿瘤细胞增殖。本发明在人或小鼠肝脏微粒体中也表现出良好的稳定性,对代谢酶无明显抑制作用,在小鼠和大鼠体内吸收良好,生物利用度高,可药用性好。