3-[(3aS,4S,6R,6aR)-6-(tert-Butyl-diphenyl-silanyloxymethyl)-2,2-dimethyl-tetrahydro-furo[3,4-d][1,3]dioxol-4-yl]-2,5-dihydro-furan-2,5-diol 在
CrO
3/silica gel 作用下,
以
乙醚 、
二氯甲烷 为溶剂,
生成 4-[(3aS,4S,6R,6aR)-6-(tert-Butyl-diphenyl-silanyloxymethyl)-2,2-dimethyl-tetrahydro-furo[3,4-d][1,3]dioxol-4-yl]-5-hydroxy-5H-furan-2-one 、 3-[(3aS,4S,6R,6aR)-6-(tert-Butyl-diphenyl-silanyloxymethyl)-2,2-dimethyl-tetrahydro-furo[3,4-d][1,3]dioxol-4-yl]-5-hydroxy-5H-furan-2-one