(2S,4R)-Methyl 4-((tert-butoxycarbonyl)amino)-1-(2-(5-methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)acetyl)pyrrolidine-2-carboxylate 在
lithium hydroxide 作用下,
以
1,4-二氧六环 、
水 为溶剂,
以91%的产率得到(2S,4R)-4-((tert-Butoxycarbonyl)amino)-1-(2-(5-methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)acetyl)pyrrolidine-2-carboxylic acid