作者:Vibha Oza、Susan Ashwell、Patrick Brassil、Jason Breed、Jaychandran Ezhuthachan、Chun Deng、Michael Grondine、Candice Horn、DongFang Liu、Paul Lyne、Nicholas Newcombe、Martin Pass、Jon Read、Mei Su、Dorin Toader、Dingwei Yu、Yan Yu、Sonya Zabludoff
DOI:10.1016/j.bmcl.2012.01.043
日期:2012.3
Checkpoint kinase 1 (Chk1, CHEK1) is a Ser/Thr protein kinase that plays a key role in mediating the cellular response to DNA-damage. Synthesis and evaluation of a previously described class of Chk1 inhibitors, triazoloquinolones/triazolones (TZs) is further described herein. Our investigation of structure–activity relationships led to the identification of potent inhibitors 14c, 14h and 16e. Key challenges
Checkpoint激酶1(Chk1,CHEK1)是一种Ser / Thr蛋白激酶,在介导细胞对DNA损伤的反应中起关键作用。本文进一步描述了先前描述的Chk1抑制剂三唑并喹诺酮类/三唑酮类化合物(TZs)的合成和评估。我们对结构活性关系的研究导致了有效抑制剂14c,14h和16e的鉴定。关键挑战包括物理化学性质和药代动力学(PK)参数的调节,以使能够在Chk1特定的中空纤维药效学模型中进行化合物测试。在此模型中,16e被证明以剂量依赖性方式消除拓扑替康诱导的细胞周期停滞。在该模型中,TZs与化学治疗剂以及放疗相结合的已证明的活性证实了该系列的Chk1抑制剂。还介绍了用于初始引线的X射线晶体结构(PDB代码:2YEX和2YER)和优化的模拟物。