Synthesis of some new 1H-benzimidazole-2-carboxamido derivatives and their antimicrobial activitiy
作者:Seçkin Özden、Figen Usta、Nurten Altanlar、Hakan Göker
DOI:10.1002/jhet.734
日期:2011.11
6‐Dichloro‐2‐hydroxymethyl‐1H‐benzimidazole (1) was prepared by the cyclization of 4,5‐dichloro‐o‐phenylenediamine with glycolic acid, then, alcohol group of 1 was converted to carboxylic acid (2). The final products 5,6‐dichloro‐1H‐benzimidazole‐2‐carboxamides (3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14) were prepared by the amidification of compounds 2 with several amines by using O‐(benzotriazol‐1‐yl)‐N,N
通过将4,5-二氯邻苯二胺与乙醇酸环化制得5,6-二氯-2-羟甲基-1 H-苯并咪唑(1),然后将1的醇基转化为羧酸(2) 。终产物5,6-二氯-1- ħ -苯并咪唑-2-羧酰胺(3,4,5,6,7,8,9,10,11,13,14)是由化合物的酰胺化制备2与几个通过使用O胺-(苯并三唑-1-基)-N,N,N ',N'-四甲基铀六氟磷酸盐。通过化合物6与甲醇的甲醇反应制备化合物12。用NMR光谱讨论了咪唑部分的互变异构体和非互变异构体类型之间的关系。在体外对合成的化合物的抗菌和抗真菌活性的金黄色葡萄球菌,大肠杆菌,枯草芽孢杆菌,和白色念珠菌与盘扩散技术进行了评价。合成的化合物比真菌对细菌的活性更高。化合物3显示出对S的最佳抑制活性。金黄色。J.杂环化学。(2011)。