Novel trialkylsilyl(germyl)-substituted thienyl- and furylbenzimidazoles and their N-substituted derivatives – synthesis, structure and cytotoxic activity
作者:Luba Ignatovich、Olga Starkova、Vitalijs Romanovs、Ilze Sleiksha、Irina Shestakova、Jury Popelis、Edmunds Lukevics
DOI:10.1016/j.crci.2012.11.013
日期:2013.6
Résumé The reaction of 1,2-phenylenediamine with a variety of silicon- or germanium-containing 2-furaldehydes or 2-thienylcarbaldehydes in DMFA gave the corresponding benzimidazole derivatives in moderate yields (36–49%) in the presence of sodium hydrogen sulfite. As a result, a new series of silyl, germyl substituted hetarylbenzimidazoles were synthesized and their in vitro cytotoxicity was studied. The quaternisation of N-substituted benzimidazoles by heating with various alkyl, allyl and propargyl chlorides and bromides leads to the formation of benzimidazolinium salts. Potential cytotoxic activity of synthesized new benzimidazoles and benzimidazolinium salts was tested in vitro on two monolayer tumour cell lines: MG-22A (mouse hepatoma), HT-1080 (human fibrosarcoma) and normal mouse fibroblasts (NIH 3T3) and compared with corresponding benzimidazoles.
摘要 在亚硫酸氢钠存在下,1,2-苯二胺与多种含硅或锗的 2-呋喃甲醛或 2-噻吩甲醛在 DMFA 中反应,得到相应的苯并咪唑衍生物,产率中等(36-49%)。因此,我们合成了一系列新的硅基、胚芽基取代的庚二基苯并咪唑,并对它们的体外细胞毒性进行了研究。将 N-取代的苯并咪唑与各种烷基、烯丙基和丙基氯化物和溴化物加热季铵化后,会形成苯并咪唑啉鎓盐。体外测试了合成的新苯并咪唑和苯并咪唑啉鎓盐对两种单层肿瘤细胞系的潜在细胞毒性活性:MG-22A(小鼠肝癌)、HT-1080(人纤维肉瘤)和正常小鼠成纤维细胞(NIH 3T3),并与相应的苯并咪唑类化合物进行了比较。