[(2R,3R,4R,5R)-5-(2,4-dioxopyrimidin-1-yl)-3-[2-methoxyethoxy(propan-2-yloxy)phosphoryl]oxy-4-(oxan-2-yloxy)oxolan-2-yl]methyl 2,2-dimethylpropanoate 在
氰乙酸 作用下,
以
水 为溶剂,
生成 (4R,6R,6aR)-4-(2,2-Dimethyl-propionyloxymethyl)-6-(2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-2-oxo-tetrahydro-2λ
5-furo[3,4-d][1,3,2]dioxaphosphol-2-ol anion 、 2,2-Dimethyl-propionic acid (2R,3S,4R,5R)-5-(2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-4-hydroxy-3-[isopropoxy-(2-methoxy-ethoxy)-phosphoryloxy]-tetrahydro-furan-2-ylmethyl ester 、 2,2-Dimethyl-propionic acid (2R,3R,4R,5R)-5-(2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-3-hydroxy-4-[isopropoxy-(2-methoxy-ethoxy)-phosphoryloxy]-tetrahydro-furan-2-ylmethyl ester 、 、 、