Toluene-4-sulfonic acid (4aR,6R,7aS)-6-(5-methyl-2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-2-oxo-tetrahydro-2λ5-furo[3,2-d][1,3,2]dioxaphosphinin-2-yl ester 在
cesium fluoride 作用下,
反应 5.0h,
生成 1-((4aR,6R,7aS)-2-Fluoro-2-oxo-tetrahydro-2λ
5-furo[3,2-d][1,3,2]dioxaphosphinin-6-yl)-5-methyl-1H-pyrimidine-2,4-dione