2-((6aR,8R,9R,9aR)-8-(2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)-9-hydroxy-2,2,4,4-tetraisopropyltetrahydro-6H-furo[3,2-f][1,3,5,2,4]trioxadisilocin-9-yl)ethyl methanesulfonate 在
sodium hydride 作用下,
以
四氢呋喃 、 mineral oil 为溶剂,
反应 2.0h,
以64%的产率得到1-((6aR,8R,9R,9aR)-2,2,4,4-tetraisopropyldihydro-6H,8H-spiro[furo[3,2-f ][1,3,5,2,4]trioxadisilocine-9,2′-oxetan]-8-yl)pyrimidine-2,4(1H,3H)-dione