(5R)-3α-Acetoxy-17β-pivaloyloxy-3,6-cyclo-A-nor-3,5-seco-6β-androstan-5-ol 在
吡啶 、 lithium aluminium tetrahydride 作用下,
以
1,4-二氧六环 为溶剂,
生成 (3S,3aS,6aS,9R,9aS,10aS,10bS)-3a,6-Dimethyl-1,2,3,3a,4,5,6a,7,8,9,9a,10,10a,10b-tetradecahydro-dicyclopenta[a,g]naphthalene-3,9-diol