(2R,3S,5R)-2-(((hydroxy(((2R,3S,5R)-2-(hydroxymethyl)-5-(5-methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)tetrahydrofuran-3-yl)oxy)phosphoryl)oxy)methyl)-5-(5-(methyl-d3)-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)tetrahydrofuran-3-yl acetate 在
potassium carbonate 作用下,
以
甲醇 为溶剂,
以91%的产率得到((2R,3S,5R)-3-hydroxy-5-(5-(methyl-d3)-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)tetrahydrofuran-2-yl)methyl ((2R,3S,5R)-2-(hydroxymethyl)-5-(5-methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)tetrahydrofuran-3-yl) hydrogen phosphate