An Improved Method for the Synthesis of Dissymmetric N,N‘-Disubstituted Imidazole-4,5-dicarboxamides
作者:Alexander V. Wiznycia、Paul W. Baures
DOI:10.1021/jo025536c
日期:2002.10.1
Symmetrically and dissymmetrically disubstituted imidazole-4,5-dicarboxamides (I45DCs) have diverse bioactivities and therefore represent useful small molecules for lead structure identification in drug discovery. For this reason, an improved synthesis was developed as a first step in the preparation of greater numbers of analogues. The method involves the transformation of imidazole-4,5-dicarboxylic
对称和不对称的双取代咪唑-4,5-二甲酰胺(I45DCs)具有多种生物活性,因此代表了用于药物发现中铅结构鉴定的有用小分子。因此,开发了改进的合成方法,作为制备更多类似物的第一步。该方法包括分四个步骤以最小产率51%将咪唑-4,5-二羧酸转化为不对称的二取代的I45DC。这反映了一个合成步骤的总体减少,与已知方法相比,收率提高了30%以上。