在
四氧化锇 作用下,
以
四氢呋喃 为溶剂,
反应 1.0h,
以72%的产率得到(3aR,6aS,7aR,8R,9R,11aR,11bS,11cS)-3-(tert-Butyl-dimethyl-silanyloxy)-11c-(tert-butyl-dimethyl-silanyloxymethyl)-5-hydroxy-9-methoxy-8,11a-dimethyl-1,3a,6a,7,7a,8,9,10,11,11a,11b,11c-dodecahydro-6-oxa-benzo[de]anthracen-4-one