[(1R,3S,3'S,4S,5S,7R,8S,10S,13S,14S,16S,18S,19R,22R)-7-acetyloxy-3-hydroxy-2',2',3',5,19-pentamethyl-21-oxospiro[17,20-dioxahexacyclo[14.5.1.01,14.04,13.05,10.019,22]docosane-18,5'-oxolane]-8-yl] acetate 在
lithium hydroxide 作用下,
以
四氢呋喃 为溶剂,
反应 2.0h,
以9.5 mg的产率得到(1R,3S,3'S,4S,5S,7R,8S,10S,13S,14S,16S,18S,19R,22R)-3,7,8-trihydroxy-2',2',3',5,19-pentamethylspiro[17,20-dioxahexacyclo[14.5.1.01,14.04,13.05,10.019,22]docosane-18,5'-oxolane]-21-one