6α-(2'-acetoxyethyl)-3β-methoxy-(1E)-5,10-seco-1(10)-cholesten-5-one 在
lithium aluminium tetrahydride 作用下,
以90%的产率得到(E)-(3R,3aR,5aS,9S,12R,13aR,13bS)-3-((R)-1,5-Dimethyl-hexyl)-12-(2-hydroxy-ethyl)-9-methoxy-3a,6-dimethyl-2,3,3a,4,5,5a,8,9,10,11,12,13,13a,13b-tetradecahydro-1H-cyclodeca[e]inden-11-ol