[(2R)-2-acetyloxy-2-[(1R,3S,4S)-4-acetyloxy-5-chloro-1-hydroxy-3-phenylmethoxy-1,2,3,4-tetrahydrocyclopenta[a]inden-7-yl]ethyl] (2R)-2-(4,5-dihydroxy-3-methyl-2-phenylmethoxyphenyl)-2-methoxyacetate 在
silver(l) oxide 作用下,
以
二氯甲烷 为溶剂,
反应 0.5h,
以94%的产率得到[(2R)-2-acetyloxy-2-[(1R,3S,4S)-4-acetyloxy-5-chloro-1-hydroxy-3-phenylmethoxy-1,2,3,4-tetrahydrocyclopenta[a]inden-7-yl]ethyl] (2R)-2-methoxy-2-(5-methyl-3,4-dioxo-6-phenylmethoxycyclohexa-1,5-dien-1-yl)acetate