Phenyl-[(2S,4aS,7R,8aR)-4,4,7-trimethyl-3-((E)-2-phenyl-pent-2-enyl)-octahydro-benzo[e][1,3]oxazin-2-yl]-methanone 以
乙腈 为溶剂,
反应 5.0h,
以29%的产率得到(3R,4aR,5aS,6R,7S,11aS)-6,8-diphenyl-7-ethyl-3,11,11-trimethyl-2,3,4,4a,6,7,11,1a-ocathydro-1H,5aH-pyrido[2,1-b][1,3]benzoxazin-6-ol