(3R,3aR,5aS,6aR,7R,8R,10aR,10bS,10cS)-3-(tert-Butyl-dimethyl-silanyloxy)-10c-(tert-butyl-dimethyl-silanyloxymethyl)-8-methoxy-7,10a-dimethyl-tetradecahydro-5-oxa-acephenanthrylen-4-one 在
lithium aluminium tetrahydride 作用下,
以
乙醚 为溶剂,
反应 6.0h,
以81%的产率得到(3R,3aR,4R,5aS,6aR,7R,8R,10aR,10bS,10cS)-4-(tert-Butyl-dimethyl-silanyloxy)-10c-(tert-butyl-dimethyl-silanyloxymethyl)-8-methoxy-7,10a-dimethyl-tetradecahydro-5-oxa-acephenanthrylen-3-ol