(4S,5R,8S,9R,10R,13S,14S,17S)-4-(tert-Butyl-diphenyl-silanyloxy)-17-methoxymethoxy-13-methyl-1,7-dioxo-hexadecahydro-cyclopenta[a]phenanthrene-10-carboxylic acid methyl ester 在
氟化氢吡啶 作用下,
以
四氢呋喃 为溶剂,
反应 8.0h,
生成 (4S,5R,8R,9R,10R,13S,14S,17S)-4,17-Dihydroxy-13-methyl-1,7-dioxo-hexadecahydro-cyclopenta[a]phenanthrene-10-carboxylic acid methyl ester 、 (4S,5R,8S,9R,10R,13S,14S,17S)-4,17-Dihydroxy-13-methyl-1,7-dioxo-hexadecahydro-cyclopenta[a]phenanthrene-10-carboxylic acid methyl ester