1,2:5,6-二-o-异亚丙基-alpha-d-ribo-3-己呋喃核糖 、
4-chlorobenzoylmethylenetriphenylphosphorane 以
氯仿 为溶剂,
反应 8.0h,
以62%的产率得到1-(4-Chloro-phenyl)-2-[(3aR,5S,6aR)-5-((R)-2,2-dimethyl-[1,3]dioxolan-4-yl)-2,2-dimethyl-dihydro-furo[2,3-d][1,3]dioxol-(6Z)-ylidene]-ethanone