(2S,3aS,3bS,5aR,6R,8aS,8bR,10aS)-3a,5a-dimethyl-6-[(2R)-6-methylheptan-2-yl]spiro[3,3b,4,5,6,7,8,8a,8b,9,10,10a-dodecahydro-1H-indeno[5,4-e]indene-2,4'-oxolane]-2'-ol 在
lithium aluminium tetrahydride 作用下,
以100%的产率得到2-[(2S,3aS,3bS,5aR,6R,8aS,8bR,10aS)-2-(hydroxymethyl)-3a,5a-dimethyl-6-[(2R)-6-methylheptan-2-yl]-3,3b,4,5,6,7,8,8a,8b,9,10,10a-dodecahydro-1H-indeno[5,4-e]inden-2-yl]ethanol