7,8-didehydro-24-O-acetylhydroshengmanol 3-O-β-D-xylopyranoside 、
乙酸酐 在
吡啶 作用下,
以5.1 mg的产率得到[(3R,4S,5R,6S)-4,5-diacetyloxy-6-[[(1R,3R,6S,8R,12R,13R,15R,16R)-13-acetyloxy-15-[(2R,4R,5S)-4,5-diacetyloxy-6-hydroxy-6-methylheptan-2-yl]-7,7,12,16-tetramethyl-14-oxo-6-pentacyclo[9.7.0.01,3.03,8.012,16]octadec-10-enyl]oxy]oxan-3-yl] acetate