1,1,1-三氟丙酮 、 [(3aR,5R,6S,6aR)-5-[(4R)-2,2-dimethyl-1,3-dioxolan-4-yl]-2,2-dimethyl-3a,5,6,6a-tetrahydrofuro[2,3-d][1,3]dioxol-6-yl] 2-diethoxyphosphorylacetate 在
sodium hydride 作用下,
以
四氢呋喃 为溶剂,
以76%的产率得到[(3aR,5R,6S,6aR)-5-[(4R)-2,2-dimethyl-1,3-dioxolan-4-yl]-2,2-dimethyl-3a,5,6,6a-tetrahydrofuro[2,3-d][1,3]dioxol-6-yl] (E)-4,4,4-trifluoro-3-methylbut-2-enoate