Synthesis and biological activity evaluation of 1H-benzimidazoles via mammalian DNA topoisomerase I and cytostaticity assays
作者:Gunes Coban、Sevil Zencir、István Zupkó、Borbála Réthy、H. Semih Gunes、Zeki Topcu
DOI:10.1016/j.ejmech.2008.06.018
日期:2009.5
the reactions of DNA topoisomerases, enzymes functioning at almost all stages of the cell cycle. In this study, nine 1H-benzimidazole derivatives with substituents at positions 2 and 5 were synthesized and the structure of the compounds was elucidated by instrumental methods. The characterized compounds were screened to identify if they interfered with mammalian type I DNA topoisomerase activity via in
苯并咪唑是重要的化合物,因为它们具有抗菌,抗真菌,抗微生物,抗原生动物和抗蠕虫的活性。一些苯并咪唑衍生物还干扰DNA拓扑异构酶的反应,DNA拓扑异构酶在细胞周期的几乎所有阶段均起作用。在本研究中,九个1 H合成了在2和5位具有取代基的-苯并咪唑衍生物,并通过仪器方法阐明了化合物的结构。通过体外超螺旋弛豫测定法筛选表征的化合物,以鉴定它们是否干扰了哺乳动物的I型DNA拓扑异构酶活性。使用HeLa(宫颈腺癌),MCF7(乳腺腺癌)和A431(皮肤表皮样癌)细胞对所选化合物进行细胞抑制分析。我们的结果表明5-氯-2-(2-羟苯基)-1 H-苯并咪唑发挥了最深刻的拓扑异构酶I抑制和细胞毒性作用。