Synthesis of Mono- and Bis-C-glycosylated 2,3,4-Trisubstituted 1<i>H</i>-Pyrroles as Cyclo- and Acyclo-<i>C</i>-nucleoside Analogues
作者:Ernesto Suárez、Carmen Alonso-Cruz、Raimundo Freire、María Rodríguez
DOI:10.1055/s-2007-991061
日期:——
A new method for the synthesis of mono- and bis-C-glycosylated 2,3,4-trisubstituted 1 H-pyrroles, a type of cyclo- and -acyclo- C-nucleoside analogues, is described. The reaction of readily available sensitive 2 H-azirines derived from carbohydrates with 1,3-dicarbonyl compounds is catalysed by tris(triphenylsilyl)vanadate under mild conditions. The reaction of 2 H-azirines with vanadium enolates has
描述了一种合成单-和双-C-糖基化 2,3,4-三取代 1 H-吡咯(一种环-和-无环-C-核苷类似物)的新方法。在温和条件下,三(三苯基甲硅烷基)钒酸盐可催化由碳水化合物衍生的易获得的敏感 2 H-氮丙啶与 1,3-二羰基化合物的反应。2 H-氮杂与钒烯醇化物的反应以前没有描述过。这种方法可能适用于以三取代的 1 H-吡咯骨架作为分子支架的组合库的合成。