[(1S,4S,7S,8R,9R,10S,11S,12R,13R,14S)-8-acetyloxy-7-(furan-3-yl)-12,13-dihydroxy-9-methyl-5,15-dioxo-6,16-dioxatetracyclo[8.7.0.01,14.04,9]heptadecan-11-yl] acetate 、
乙酸酐 在
吡啶 作用下,
反应 1.5h,
以50%的产率得到[(1S,4S,7S,8R,9R,10S,11S,12S,13R,14S)-8,11-diacetyloxy-7-(furan-3-yl)-12-hydroxy-9-methyl-5,15-dioxo-6,16-dioxatetracyclo[8.7.0.01,14.04,9]heptadecan-13-yl] acetate