2-[(2R,6S)-6-((2S,4R,5S)-2-(tert-Butyl-dimethyl-silanyloxy)-5-methyl-7-{(2S,6S)-6-[3-(4-oxo-2,2-diphenyl-4H-benzo[1,3]dioxin-5-yl)-propyl]-tetrahydro-pyran-2-yl}-4-trimethylsilanyloxy-heptyl)-tetrahydro-pyran-2-yl]-2-methyl-propionic acid benzyl ester 在
吡啶 、
氟化氢吡啶 作用下,
以
四氢呋喃 为溶剂,
反应 1.0h,
以88%的产率得到2-[(2R,6S)-6-((2R,4R,5S)-2-(tert-Butyl-dimethyl-silanyloxy)-4-hydroxy-5-methyl-7-{(2S,6S)-6-[3-(4-oxo-2,2-diphenyl-4H-benzo[1,3]dioxin-5-yl)-propyl]-tetrahydro-pyran-2-yl}-heptyl)-tetrahydro-pyran-2-yl]-2-methyl-propionic acid benzyl ester