Synthesis and antiviral evaluation of nucleosides of 5-methylimidazole-4-carboxamide
作者:Rosario Alonso、J. Ignacio Andres、M. Teresa Garcia-Lopez、Federico G. De las Heras、Rosario Herranz、Balbino Alarcon、Luis Carrasco
DOI:10.1021/jm00383a027
日期:1985.6
)-carboxamide with 3,5-di-O-p-toluoyl-2-deoxy-D-erythro-pentofuranosyl chloride via mercuric cyanide method provided an anomeric mixture of the blocked 5-methylimidazole-4-carboxamide deoxynucleoside 14 along with an anomeric mixture of the 4-methyl 5-carboxamide isomer 15. Separation of compound 14 into the corresponding beta and alpha anomers was achieved by conversion to the 3',5'-di-O-acetyl derivatives
由于某些与利巴韦林有关的5-取代的咪唑核苷的抗病毒活性,因此具有β-D-呋喃呋喃糖基,2-脱氧-β-和-α-D-呋喃呋喃糖基和(2-羟基乙氧基)的5-甲基咪唑-4-羧酰胺核苷甲基部分已被制备并作为抗病毒剂进行了测试。通过相应的三-O-乙酰基核苷11的脱乙酰化或受保护的5-甲基咪唑-4-羧酸乙酯的核苷10的脱乙酰化和氨解反应制得1-β-D-核呋喃糖基-5-甲基咪唑-4-甲酰胺。由氯化锡催化的4(5)-甲基咪唑-5(4)-羧酸乙酯的三甲基甲硅烷基衍生物的缩合反应制得。4(5)-甲基咪唑-5(4)-羧酰胺与3的糖基化 所有这些咪唑核苷均在HeLa细胞培养物中针对1型单纯疱疹和水疱性口炎病毒进行了测试。核呋喃糖基衍生物12显示出对1型单纯疱疹病毒的显着活性。