(1S,2S,4aR,6aR,6bR,8aR,10S,12aR,12bR,14aR,14bR)-1,2,6a,6b,9,9,12a-heptamethyl-3,15-dioxoicosahydro-2,4a-(epoxymethano)phenanthro[2,1-f]chromen-10-yl acetate 在
lithium aluminium tetrahydride 作用下,
以
1,4-二氧六环 为溶剂,
反应 4.0h,
以0.05 g的产率得到(2S,4aR,4bR,6aR,7R,8R,10aR,10bR,12aR)-7-((R)-2,3-Dihydroxy-1,2-dimethyl-propyl)-8-hydroxymethyl-1,1,4a,10a,10b-pentamethyl-octadecahydro-chrysene-2,8-diol