通过对我们的激酶导向化合物集合的基于细胞的筛选,我们发现N-苯基-4-(噻唑-5-基)嘧啶-2-胺的一个子集是针对癌细胞系的有效细胞毒剂,抑制有丝分裂组蛋白 H3磷酸化,并导致异常的有丝分裂表型。随后证实,这些化合物实际上是极光 A 和 B 激酶的有效抑制剂。结果表明,极光激酶抑制的效力和选择性与这些化合物中苯胺对位取代基的存在相关。先导化合物4-甲基-5-(2-(4-morpholinophenylamino)pyrimidin-4-yl)thiazol-2-amine ( 18 ; K i ) 的抗癌作用极光 A 和 B 的值分别为 8.0 和 9.2 nM) 显示来自有丝分裂失败后的细胞死亡和由于细胞抑制极光 A 和 B 激酶而增加的多倍性。初步体内评估表明,化合物18具有口服生物利用度并具有抗癌活性。化合物18 (CYC116) 目前正在癌症患者中进行 I 期临床评估。
[EN] PYRIMIDINE COMPOUNDS<br/>[FR] COMPOSES DE PYRIMIDINE
申请人:CYCLACEL LTD
公开号:WO2004043953A1
公开(公告)日:2004-05-27
The present invention relates to substituted pyrimidines of formula (I), their preparation, pharmaceutical compositions containing them and their use as inhibitors of cyclin-dependent kinases (CDKs) and hence their use in the treatment of proliferative disorders and/or viral disorders.
The present invention relates to substituted pyrimidines of formula I, their preparation, pharmaceutical compositions containing them and their use as inhibitors of cyclin-dependent kinases (CDKs) and hence their use in the treatment of proliferative disorders and/or viral disorders.
PYRIMIDINE COMPOUNDS AS CYCLIN-DEPENDENT KINASE INHIBITORS
申请人:Cyclacel Limited
公开号:EP1864983A1
公开(公告)日:2007-12-12
The present invention relates to substituted pyrimidines of formula (I), their preparation, pharmaceutical compositions containing them and their use as inhibitors of cyclin-dependent kinases (CDKs) and hence their use in the treatment of proliferative disorders and/or viral disorders.