B-DIHYDROFURAN DERIVING COMPOUND, METHOD FOR PRODUCING B-DIHYDROFURAN DERIVING COMPOUND OR B-TETRAHYDROFURAN DERIVING COMPOUND, B -GLYCOSIDE COMPOUND, METHOD FOR PRODUCING B-GLYCOSIDE COMPOUND, AND METHOD FOR PRODUCING 4'-ETHYNYL D4T AND ANALOGUE COMPOUNDS THEREOF

摘要

The invention provides a process for producing a ²-dihydrofuran derivative represented by formula (1) or a ²-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.