(E)-(S)-5-{(4R,5R)-5-[(1E,3E)-7-(tert-Butyl-diphenyl-silanyloxy)-hepta-1,3-dienyl]-2,2-dimethyl-[1,3]dioxolan-4-yl}-4-oxo-hex-2-enoic acid methyl ester 以
苯 为溶剂,
反应 4.0h,
生成
(3aS,4S,5aS,6S,7R,9aS,9bS)-7-[3-(tert-Butyl-diphenyl-silanyloxy)-propyl]-2,2,4-trimethyl-5-oxo-3a,4,5,5a,6,7,9a,9b-octahydro-naphtho[1,2-d][1,3]dioxole-6-carboxylic acid methyl ester 、
(3aS,4S,5aS,6S,7S,9aR,9bS)-7-[3-(tert-Butyl-diphenyl-silanyloxy)-propyl]-2,2,4-trimethyl-5-oxo-3a,4,5,5a,6,7,9a,9b-octahydro-naphtho[1,2-d][1,3]dioxole-6-carboxylic acid methyl ester 、 (3aS,4S,5aR,6R,7S,9aR,9bS)-7-[3-(tert-Butyl-diphenyl-silanyloxy)-propyl]-2,2,4-trimethyl-5-oxo-3a,4,5,5a,6,7,9a,9b-octahydro-naphtho[1,2-d][1,3]dioxole-6-carboxylic acid methyl ester