(1R,2S,3R,6R,7R,8R,13R)-13-hydroxy-6-isopropyl-3,13-dimethyl-9-methylen-15-oxatricyclo[6.6.1.02,7]pentadec-3-yl acetate 在
mercuric trifluoroacetate 、 sodium tetrahydroborate 作用下,
以
四氢呋喃 为溶剂,
反应 3.5h,
以60%的产率得到[(1R,2S,6R,8R,9S,10R,13R,14R)-2,6,10-trimethyl-13-propan-2-yl-15,16-dioxatetracyclo[6.6.1.12,6.09,14]hexadecan-10-yl] acetate