N -heterocyclic carbenes (NHC) with 1,2,4-oxadiazole-substituents related to natural products: Synthesis, structure and potential antitumor activity of some corresponding gold(I) and silver(I) complexes
作者:Catalin V. Maftei、Elena Fodor、Peter G. Jones、Matthias Freytag、M. Heiko Franz、Gerhard Kelter、Heinz-Herbert Fiebig、Matthias Tamm、Ion Neda
DOI:10.1016/j.ejmech.2015.06.053
日期:2015.8
the synthesis, characterization and application of eleven new gold (I) complexes 13–23 with 1,2,4-oxadiazole-containing N-heterocyclic carbene (NHC) ligands and of the NHC silver(I) complex 24. The 1,2,4-oxadiazole unit, which can be found in a variety of biologically active natural products such as phidianidines or quisqualic acid, was incorporated, along with a variety of other biologically active
这项工作提出的合成,表征和11个新的金(I)络合物的应用13 - 23与1,2,4-含有恶二唑ñ -杂环卡宾(NHC)配体和NHC银(I)络合物的24。1,2,4-恶二唑单元与各种其他生物活性部分(蒽,吲哚,2-吡啶, 2,3,4,5-四-O-乙酰基-D-吡喃葡萄糖,喹可林和喹可啶),以改变复合物的亲脂性,从而促进活性单元(M-NHC)通过细胞壁屏障的转运。研究了复合物的生物活性。通过单层测定对一组12种人类肿瘤细胞系的抗肿瘤活性进行的体外评估显示出令人印象深刻的效价(平均IC 50 <0.1μM)和对6种化合物的肿瘤选择性,单个IC 50值在低纳摩尔范围内。化合物的固态结构13,14,15,17,18,19和24 通过X射线衍射分析确定。