作者:Ann Parkin、Michael R. Harnden
DOI:10.1002/jhet.5570190104
日期:1982.1
Hydroxyl-protected derivatives of 1- and 3-(2-hydroxyethoxymethyl)imidazoles (4,5,7-10) have been prepared from 5-amino-4-carbamoylimidazoles (2). The protected derivatives were converted to acyclic analogues of imidazole nucleosides (6) or subjected to various cyclisation reactions leading to 9-(2-hydroxy-ethoxymethyl)-substituted 2-methyl-, 2-phenyl- and 2-azahypoxanthines (18,13 and 20, respectively)
的1-和3-(2-羟基乙氧基甲基)咪唑(羟基被保护的衍生物4,5,7-10)已经从5-氨基-4- carbamoylimidazoles(制备2)。将受保护的衍生物转化为咪唑核苷的无环类似物(6)或进行各种环化反应,生成9-(2-羟基-乙氧基甲基)取代的2-甲基-,2-苯基-和2-氮杂泛黄嘌呤(18,13和分别为20和1-甲基鸟嘌呤(28)。为了将结构分配给异构的咪唑和嘌呤衍生物,已使用13 C化学位移。