1-{[(2S,3aS,4S,5S)-4,5-dihydroxy-hexahydropyrrolo[1,2-b]isoxazol-2-yl]methyl}-5-fluoropyrimidine-2,4(1H,3H)-dione 、
三氟乙酸 在
palladium on activated charcoal
氢气 作用下,
以
甲醇 为溶剂,
反应 4.0h,
以65%的产率得到(2S,3S,4S)-3,4-dihydroxy-2-[(2S)-2-hydroxy-3-(5-fluoro-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)propyl]pyrrolidinium trifluoroacetate