[(1R,2R,5S,6S)-3-formyl-4-[5-(methoxymethoxy)-1,4-dioxonaphthalen-2-yl]-1-methyl-5-[(2-methylpropan-2-yl)oxycarbonyloxy]-7-oxabicyclo[4.1.0]hept-3-en-2-yl] acetate 以
硝基甲烷 为溶剂,
反应 1.0h,
以34%的产率得到[(3S,4S,6S,7R)-17-hydroxy-15-(methoxymethoxy)-6-methyl-3-[(2-methylpropan-2-yl)oxycarbonyloxy]-5,9-dioxapentacyclo[8.8.0.02,8.04,6.011,16]octadeca-1(18),2(8),10,12,14,16-hexaen-7-yl] acetate