benzyl (S)-3-((2S,3S,5R)-3-(benzyloxy)-5-(5-methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)tetrahydrofuran-2-carboxamido)-4-(((2S,3S,5R)-2-((benzyloxy)methyl)-5-(5-methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)tetrahydrofuran-3-yl)amino)-4-oxobutanoate 在
palladium 10% on activated carbon 、
氢气 作用下,
以
甲醇 为溶剂,
以68%的产率得到(3S)-3-[[(2S,3S,5R)-3-hydroxy-5-(5-methyl-2,4-dioxopyrimidin-1-yl)oxolane-2-carbonyl]amino]-4-[[(2S,3S,5R)-2-(hydroxymethyl)-5-(5-methyl-2,4-dioxopyrimidin-1-yl)oxolan-3-yl]amino]-4-oxobutanoic acid