Ribosylation and glucosylation of the base residues of inosine and uridine have been efficiently achieved using Mitsunobu reaction, leading to the N-1 and 6-O-glycosylinosine and N-3-glycosyluridine derivatives, all with β configuration at the glycosidic carbon. The unprecedented 5-amino-1-(β-D-ribofuranosyl)imidazole-4-[N-(β-D-glucopyranosyl)carboxamide] has also been synthesised.
利用三忍反应(Mitsunobu reaction)对
肌苷和
尿苷的碱基残基进行了
核糖基化和
葡萄糖基化,从而得到了 N-1、6-O-糖基
肌苷和 N-3-糖基
尿苷衍
生物,所有衍
生物的糖基碳均为β构型。此外,还合成了前所未有的 5-
氨基-1-(β-D-
呋喃核糖基)
咪唑-4-[N-(β-
D-吡喃葡萄糖基)羧酰胺]。