The invention provides a process for producing a β-dihydrofuran derivative represented by formula (1) or a β-tetrahydrofuran derivative represented by formula (4), characterized in that the process includes causing a dialkyl dicarbonate, a diaralkyl dicarbonate, or a halide to act on a diol compound represented by formula (2) or (3). The invention also provides a process for producing 4′-ethynyl-2′,3′-didehydro-3′-deoxythymidine or an analog thereof, the process including glycosylation and deprotection.
该发明提供了一种生产由式(1)表示的β-二
氢呋喃衍
生物或由式(4)表示的β-
四氢呋喃衍
生物的过程,其特征在于该过程包括使二烷基二
碳酸酯、二芳基二
碳酸酯或卤化物作用于由式(2)或(3)表示的二醇化合物。该发明还提供了一种生产4'-
乙炔基-2',3'-二去
氢-3'-
脱氧胸苷或其类似物的过程,包括糖基化和去保护。