[(1S,4S,5R,8R,10S,13S,17S,18R)-4,5,9,9,13,20,20-heptamethyl-16,23-dioxo-24-oxahexacyclo[15.5.2.01,18.04,17.05,14.08,13]tetracos-14-en-10-yl] acetate                                                                                                                                                              在
                                                                                                                                                                                 lithium aluminium tetrahydride                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
四氢呋喃                                                                                  为溶剂,
                                                                                                                                                    反应 1.5h,
                                                                                                                以95%的产率得到(3S,4aR,6aR,6aS,6bS,8aS,12aR,13R,14bS)-8a-(hydroxymethyl)-4,4,6a,6b,11,11,14b-heptamethyl-2,3,4a,5,6,7,8,9,10,12,12a,13-dodecahydro-1H-picene-3,6a,13-triol