1-[(4R,6S,6aR)-6-(iodomethyl)-2,2-dimethyl-3a,4,6,6a-tetrahydrofuro[3,4-d][1,3]dioxol-4-yl]-5-fluoropyrimidine-2,4-dione → 5'-Deoxy-5'-iodo-5-fluorouridine

Participants

Reaction Steps

5'-Deoxy-5'-iodo-2',3'-O-isopropylidene-5-fluorouridine (4 g) was treated with trifluoroacetic acid/water (9:1, 30 ml) for 15 minutes at room temperature. The solution was evaporated to dryness, co-evaporated with ethanol (2 × 100 ml) and the residue was recrystallized from ethyl acetate. Yield = 1.865 g (88%).

Provenance & Evidence