Ureido-Pyridazinone Derivatives: Insights into the Structural and Conformational Properties for STAT3 Inhibition
作者:Fiorella Meneghetti、Stefania Villa、Daniela Masciocchi、Daniela Barlocco、Lucio Toma、Dong-Cho Han、Byoung-Mog Kwon、Naohisa Ogo、Akira Asai、Laura Legnani、Arianna Gelain
DOI:10.1002/ejoc.201500599
日期:2015.8
Three new ureido-pyridazinone derivatives, which are structurally related to the known STAT3 inhibitor AVS-0288, were designed by taking into account the structure–activity relationships determined for several ureido-oxadiazole derivatives previously studied by our group. Their synthesis was first attempted through suitable 5-aminopyridazinone intermediates (6a and 6b), which molecular structures were
考虑到我们小组先前研究的几种脲基-恶二唑衍生物的构效关系,设计了三种新的脲基-哒嗪酮衍生物,它们在结构上与已知的 STAT3 抑制剂 AVS-0288 相关。它们的合成首先通过合适的 5-氨基哒嗪酮中间体(6a 和 6b)尝试合成,其分子结构通过 6a 的 X 射线衍射数据得到证实。胺官能化不成功,因此,设计了替代方法。双荧光素酶和基于 AlphaScreen 的测定被用来测试它们的活性。在建模研究的基础上对获得的数据进行了合理化,该研究将我们的注意力集中在脲基部分的几何偏好上。计算结果似乎表明 1,2,