O-Benzoyllamivudine → Lamivudine

참여 물질

반응 단계

A suspension of (cis)-4-amino-1-(2-benzoyloxymethyl-1,3-oxathiolan-5-yl)(1H)-pyrimidin-2-one (Intermediate 3) (8.19 g) and Amberlite IRA-400 (OH) resin (8.24 g) in methanol (250 ml) was stirred and heated to reflux for 11/4 h. Solids were removed by filtration then washed with methanol. The combined filtrates were evaporated. The residue was triturated with ethyl acetate (80 ml). The resulting white solid was collected by filtration to give the title product (5.09 g), 1H NMR (DMSO-d6) 3.04 (1H), 3.40 (1H), 3.73 (2H), 5.18 (1H), 5.29 (1H), 5.73 (1H), 6.21 (1H), 7.19 (2H), 7,81 (1H).

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