We report structure-guided modifications of the benzyloxy substituent of the Insulin-like Growth Factor-1 Receptor (IGF-1R) inhibitor NVP-AEW541. This chemical group has been shown to confer selectivity against other protein kinases but at the expense of a metabolism liability. X-ray crystallography has revealed that the benzyloxy moiety interacts with a lysine cation of the IGF-1R kinase domain via
我们报告
胰岛素样生长因子-1受体(IGF-1R)
抑制剂NVP-AEW541的苄氧基取代基的结构指导的修饰。已显示该
化学基团赋予针对其他蛋白激酶的选择性,但以代谢责任为代价。X射线晶体学表明,苄氧基部分通过其醚功能和其芳香族π系统与IGF-1R激酶结构域的赖
氨酸阳离子相互作用,并且很好地嵌入诱导的疏
水口袋中。我们表明,显示出足够的疏
水性和约束形状的1,4-
二醚是有利的苄氧基替代物。 按照这种方法鉴定出了一位数的纳摩尔
抑制剂(化合物20,IC 50 = 8.9 nM)。