Synthesis and Characterization of Some Novel 2-(Trifluoromethyl)pyrimido[1,2-<b><i>a</i></b>]benzimidazoles and Pyrimido[1,2-<b><i>a</i></b>]benzimidazol-2<b><i>H</i></b>)-ones of Biological Interest
作者:Nilo Zanatta、Aurea Echevarria、Simone Amaral、Andressa Esteves-Souza、Patrícia Brondani、Darlene Flores、Helio Bonacorso、Alex Flores、Marcos Martins
DOI:10.1055/s-2006-942444
日期:——
The synthesis of some potentially active 2-(trifluoro-methyl)pyrimido[1,2-a]benzimidazoles and pyrimido[1,2-a]benzimidazol-2(1H)-ones by the cyclization of 4-alkoxyvinyl trifluoro(chloro)methyl ketones with 2-aminobenzimidazole is described. The structure of the products was assigned based on 'H and 13 C NMR as well as 2D-NMR experiments. Some of the obtained products exhibited significant DNA-topoisomerase
4-烷氧基乙烯基三氟(氯)环化合成一些具有潜在活性的2-(三氟甲基)嘧啶并[1,2-a]苯并咪唑和嘧啶并[1,2-a]苯并咪唑-2(1H)-one描述了具有 2-氨基苯并咪唑的甲基酮。产物的结构基于 1H 和 13 C NMR 以及 2D-NMR 实验确定。一些获得的产物表现出显着的DNA-拓扑异构酶I抑制活性。