3(R)-<3-hydroxy-3-methyl-6-(2-methyl-<1,3>dioxolan-2-yl)-4-(1-methyl-1H-imidazole-2-sulfonyl)hexyl>-2,2-dimethylcyclopropane-1(R)-carboxylic acid tert-butyl ester 在
samarium diiodide 作用下,
以
四氢呋喃 为溶剂,
反应 0.33h,
以84%的产率得到2,2-dimethyl-3(R)-<3-methyl-6-(2-methyl-<1,3>dioxolan-2-yl)hex-3-enyl>cyclopropane-1(R)-carboxylic acid tert-butyl ester