反应详情

To a solution of 3438.4 g (4.51 mol) of 6-amino-2-[2-(4-chlorophenyl)ethoxy]-9-(2,3,5-tri-O-tert-butyldimethyl-β-D-ribofuranosyl)purine in 48.4 L of methanol was added 1.679 g (45.32 mol) of ammonium fluoride. The solution was heated to reflux and monitored by HPLC to determine completion. The reaction was allowed to cool to room temperature and the solvent was concentrated under reduced pressure. The reaction mixture was partitioned between water (17.3 L) and ethyl acetate (17.3 L). The aqueous layer was washed again with ethyl acetate (17.4 L). The combined organic layers were dried over magnesium sulfate (1000 g), filtered and removed under reduced pressure. The resultant solid was recrystallized from ethanol (9.87 L) to yield an off-white solid (1139 g, 59.8% yield).

1. temperatureThe solution was heated
2. temperatureto reflux
3. concentrationthe solvent was concentrated under reduced pressure
4. customThe reaction mixture was partitioned between water (17.3 L) and ethyl acetate (17.3 L)
5. washThe aqueous layer was washed again with ethyl acetate (17.4 L)
6. dry with materialThe combined organic layers were dried over magnesium sulfate (1000 g)
7. filtrationfiltered
8. customremoved under reduced pressure
9. customThe resultant solid was recrystallized from ethanol (9.87 L)