(1aS*,8R*,8aR*,8bS*)-8a-tert-butyldimethylsiloxy-6-methoxy-5,8-dimethyl-4,7-dioxo-1-p-toluenesulfonyl-1,1a,2,4,7,8,8a,8b-octahydroazirino<2',3':3,4>pyrrolo<1,2-a>indole 在
Na-naphthalene 、
氧气 作用下,
以
四氢呋喃 为溶剂,
以16%的产率得到(1aS*,8R*,8aR*,8bS*)-8a-tert-butyldimethylsiloxy-6-methoxy-5,8-dimethyl-4,7-dioxo-1,1a,2,4,7,8,8a,8b-octahydroazirino<2',3':3,4>pyrrolo<1,2-a>indole