The perbenzylated d-ribofuranosyl fluoride is allowed to react with Grignard reagents of aromatic heterocycles such as thiophene, pyrrole, and indole in THF to afford the corresponding β-C-nucleosides in moderate yields. The present process can be also applied to perbenzylated d-glucopyranosyl fluoride and perbenzylated 2-deoxy-d-ribofuranosyl fluoride as sugar donors.
过苄基化的d-
核糖呋喃糖
氟化物与芳香杂环如
噻吩、
吡咯和
吲哚的格林纳试剂在THF中反应,得到相应的β-C-核苷,产率中等。该过程也可应用于过苄基化的d-
葡萄糖吡喃糖
氟化物和过苄基化的2-脱氧-d-
核糖呋喃糖
氟化物作为糖供体。