[(1R,8S,9R)-9-hydroxy-4,6-dimethoxy-1,8-bis(4-methoxyphenyl)-16-oxo-15-oxatetracyclo[8.6.1.02,7.014,17]heptadeca-2(7),3,5,10(17),11,13-hexaen-12-yl] acetate 在
pyridinium chlorochromate 作用下,
以
二氯甲烷 为溶剂,
反应 0.5h,
以70%的产率得到[(1R,8S)-4,6-dimethoxy-1,8-bis(4-methoxyphenyl)-9,16-dioxo-15-oxatetracyclo[8.6.1.02,7.014,17]heptadeca-2(7),3,5,10(17),11,13-hexaen-12-yl] acetate