(3S,5aR,6aS,7S,8S,10aS,10bR,10cS)-3a-Benzenesulfonyl-3-hydroxy-8-methoxy-7,10a-dimethyl-4-oxo-tetradecahydro-5-oxa-acephenanthrylene-10c-carbaldehyde 在
aluminium amalgam 作用下,
以
四氢呋喃 、
水 为溶剂,
反应 3.0h,
以71%的产率得到(3S,3aS,5aR,6aS,7S,8S,10aS,10bR,10cR)-3-Hydroxy-10c-hydroxymethyl-8-methoxy-7,10a-dimethyl-tetradecahydro-5-oxa-acephenanthrylen-4-one