24-O-acetylhydroshengmanol 3-[beta]-D-xylopyranoside(delta16,17)-enol ether 在
potassium phosphate 、
potassium dihydrogenphosphate 、 cellulase 作用下,
以
甲醇 、
水 为溶剂,
反应 72.0h,
以70%的产率得到[(1S)-1-[(1S,4S,6R,8R,11R,12S,13R,16R,18S,21R)-11,18-dihydroxy-4,6,12,17,17-pentamethyl-9-oxahexacyclo[11.9.0.01,21.04,12.05,10.016,21]docos-5(10)-en-8-yl]-2-hydroxy-2-methylpropyl] acetate