The invention provides a method for efficiently producing β-D-ribofuranose derivatives or optical isomers thereof, useful as synthetic intermediates of pharmaceutical nucleic acid-series products. The method comprises a step of producing 1-O-benzyl-β-D-ribofuranose-2,3,5-triacetate or an optical isomer thereof by allowing β-D-ribofuranose-1,2,3,5-tetraacetate or an optical isomer thereof to react with benzyl alcohols in the presence of acid catalysts and a step of hydrolyzing the resulting 1-O-benzyl-β-D-ribofuranose-2,3,5-triacetate in the presence of a base to produce 1-O-benzyl-β-D-ribofuranose or an optical isomer thereof.
本发明提供了一种高效生产β-
D-核糖呋喃衍
生物或其光学异构体的方法,该方法可用作制备药物核酸系列产品的合成中间体。该方法包括以下步骤:在酸催化剂的存在下,使β-
D-核糖呋喃-1,2,3,5-
四乙酸酯或其光学异构体与
苄醇反应,以生产1-O-苄基-β-
D-核糖呋喃-2,3,5-
三乙酸酯或其光学异构体;在碱的存在下
水解所得的1-O-苄基-β-
D-核糖呋喃-2,3,5-
三乙酸酯,以生产1-O-苄基-β-
D-核糖呋喃或其光学异构体。