反应详情

To a N,N-dimethylformamide solution (1 mL) of N1,5′-O-dibenzyl-2′,3′-dideoxyinosine (52 mg, 0.125 mmol), an aqueous solution of sodium hydroxide (0.3 mL) at a concentration of 1 mol/L was added, and the mixture was stirred at room temperature for 2 hours. To the obtained solution, 20% palladium hydroxide-carbon (10 mg) was added, and the mixture was stirred at room temperature for 2 hours in an atmosphere of hydrogen (1 atm) and thereafter stirred at 80° C. for 16 hours and at 100° C. for 6 hours. The palladium catalyst was removed from the obtained reaction mixture by filtration, and the resultant filtrate was concentrated under reduced pressure. After purification by chromatography (using 10 g of silica gel and a mixed solvent of dichloromethane and methanol (4:1) as an eluting solution), 21 mg of the intended product was obtained in a yield of 70% as a white solid.

1. stirringstirred at 80° C. for 16 hours and at 100° C. for 6 hours
2. customThe palladium catalyst was removed from the obtained reaction mixture by filtration
3. concentrationthe resultant filtrate was concentrated under reduced pressure
4. customAfter purification by chromatography (