A process for producing a butanetriol derivative represented by formula (1) useful as a material for medicines, characterized by reacting a compound represented by formula (3), wherein R1 and R2 represent different protecting groups, with an ethylene glycol derivative under basic conditions to obtain a compound represented by formula (4) or (4a) and selectively removing one or two protecting group from this compound.
一种生产由式(1)表示的可用作药物材料的丁三醇衍
生物的工艺,其特征在于将由式(3)表示的化合物(其中R1和R2代表不同的保护基团)与
乙二醇衍
生物在碱性条件下反应,得到由式(4)或(4a)表示的化合物,并选择性地从该化合物中除去一个或两个保护基团。