Structure-Based Design, Synthesis, and Biological Evaluation of Potent and Selective Macrocyclic Checkpoint Kinase 1 Inhibitors
作者:Zhi-Fu Tao、Le Wang、Kent D. Stewart、Zehan Chen、Wendy Gu、Mai-Ha Bui、Philip Merta、Haiying Zhang、Peter Kovar、Eric Johnson、Chang Park、Russell Judge、Saul Rosenberg、Thomas Sowin、Nan-Horng Lin
DOI:10.1021/jm061247v
日期:2007.4.1
Based on the crystallographic analysis of a urea-checkpoint kinase 1 (Chk1) complex and molecular modeling, a class of macrocyclic Chk1 inhibitors were designed and their biological activities were evaluated. An efficient synthetic methodology for macrocyclic ureas was developed with Grubbs metathesis macrocyclization as the key step. The structure-activity relationship studies demonstrated that the
基于尿素检查点激酶1(Chk1)配合物的晶体学分析和分子建模,设计了一类大环Chk1抑制剂并评估了其生物学活性。以Grubbs复分解大环化为关键步骤,开发了一种有效的大环脲合成方法。结构-活性关系研究表明,大环化保留了全部的Chk1抑制活性,并且苯环的4位可以耐受各种各样的取代基。这些新颖的Chk1抑制剂对超过70种激酶具有优异的选择性。化合物5b,5c,5f,15、16d,17g,17h,17k,18d和22被确定为理想的Chk1抑制剂,它显示出很少或没有单药活性,但显着增强了破坏DNA的抗肿瘤药阿霉素和喜树碱的细胞毒性。这些新颖的Chk1抑制剂消除了阿霉素诱导的G2和喜树碱诱导的S检查点停滞,证实了其有效的生物学活性是通过Chk1抑制作用基于机制的。