Novel 1,2,4-oxadiazoles and trifluoromethylpyridines related to natural products: synthesis, structural analysis and investigation of their antitumor activity
作者:Catalin V. Maftei、Elena Fodor、Peter G. Jones、Constantin G. Daniliuc、M. Heiko Franz、Gerhard Kelter、Heinz-Herbert Fiebig、Matthias Tamm、Ion Neda
DOI:10.1016/j.tet.2016.01.011
日期:2016.3
The design, structural characterization and potential medical application of novel 1,2,4-oxadiazole and trifluoromethylpyridine derivatives are described. Starting from two readily available compounds, 4-(3-(tert-butyl)-1,2,4-oxadiazol-5-yl)aniline (1) and 2-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)ethanamine (10), other bioactive moieties were incorporated (such as pyrazole, pyrazolo[3,4-d]pyrimidine)
描述了新型1,2,4-恶二唑和三氟甲基吡啶衍生物的设计,结构表征和潜在医学应用。从两种容易获得的化合物开始,4-(3-(叔丁基)-1,2,4-恶二唑-5-基)苯胺(1)和2-(3-氯-5-(三氟甲基)吡啶2 -yl)乙胺(10),掺入其他生物活性部分(例如吡唑,吡唑并[3,4-d]嘧啶),以改变分子的亲脂性,从而使生物活性单元通过细胞转运隔离墙可以改善。这些化合物的体外抗癌活性通过单层增殖测定法在一组12种细胞系中进行评估。发现有很好的效力17,其平均IC 50值为5.66μM,而其他化合物的活性较小或无活性。化合物的固态结构3,5,7-9,11,12和17通过X射线衍射分析来建立。