1,3-bis(2-vinylphenoxy)propane 、
ethane-1,2-diyl bis(2-diazo-4,4-dimethyl-3,5-dioxohexanoate) 在
dirhodium tetraacetate 作用下,
以
苯 为溶剂,
反应 1.0h,
以55%的产率得到(3R,4aR,17bR,19R,21aS,27aS)-2,2,3,19,20,20-hexamethyl-2,3,4,4a,11,12,17b,18,19,20,24,25-dodecahydro-1H-3,27a:19,21a-diepoxytetrabenzo[f,h,o,q][1,4,10,14]tetraoxacyclononadecine-1,21,22,27(10H)-tetraone