HCID 13923453, compound → 3'-Azido-2',3'-dideoxy-5-ethyluridine

Participants

Reaction Steps

A mixture of 3'-azido-5-ethyl-5'-O-trityl-2',3'-dideoxyuridine (0.9 g, 1.72 mmole) and 80% acetic acid (25 ml) is heated at 85°-90° C. for 40 minutes, after which acetic acid is evacuated in vacuo to a solid in which water (50 ml) is added, and the mixture is stirred for 10 minutes. The solution is filtered through a celite pad, and then the filtrate is extracted with n-hexane. The water layer is separated, evaporated down to ca. 2 ml, and then the solution is freeze-dried to yield an amorphous powder (400 mg, 83%). Recrystallization from MeOH gives fine needles. m.p. 118°-120° C.

Provenance & Evidence