Synthesis of Series of 1- and 3-Differently Substituted Xanthines from Imidazoles.
作者:Antonio Rodríguez Hergueta、María José Figueira、Carmen López、Olga Caamaño、Franco Fernández、José Enrique Rodríguez-Borges
DOI:10.1248/cpb.50.1379
日期:——
A new and general method is described for the synthesis, in three steps and in good overall yields, of tetrasubstituted xanthines from an easily prepared imidazole precursor. The method is especially useful for the preparation in standardized conditions of series of xanthines combining a broad variety of primary or secondary alkyl, benzyl or aryl groups at N1 and of alkyl or arylmethyl groups at N3, that are not readily available by other methods.
描述了一种新的通用方法,用于从易于制备的咪唑前体中分三步合成四取代黄嘌呤,并具有良好的总收率。该方法特别适用于在标准化条件下制备在N1处结合多种伯或仲烷基、苄基或芳基以及在N3处结合烷基或芳甲基的系列黄嘌呤,这是通过其他方法不易获得的。