An object of the present invention is to provide a industrially appropriate method for producing the β-anomers of ribofuranose derivatives in a highly selective manner at a high yield. The present invention provides a method for producing ribofuranose derivatives wherein β-anomers is precipitated from among the generated furanose derivatives by controlling the amount of a reaction reagent used and/or using a poor solvent in the acetolysis reactions of 2,3,5-tri-O-acyl-1-O-alkyl-ribofuranose and 2,3-di-O-acyl-1-O-alkyl-5-deoxy-ribofuranose.
本发明的目的是提供一种以高选择性和高产率的方式生产核
呋喃糖衍
生物β-异构体的工业化适当方法。本发明提供了一种生产核
呋喃糖衍
生物的方法,通过控制 2,3,5-三-O-酰基-1-O-烷基核
呋喃糖和 2,3-二-O-酰基-1-O-烷基-5-脱氧核
呋喃糖乙酰分解反应中反应试剂的用量和/或使用贫溶剂,从生成的
呋喃糖衍
生物中析出 β-异构体。