4-But-3-enyl-3,5-dimethoxy-4-((S)-2-methoxymethyl-pyrrolidine-1-carbonyl)-cyclohexa-2,5-dienone 以
苯 为溶剂,
生成 (1aS,3aS,6aR,6bR)-4,6b-Dimethoxy-3a-((S)-2-methoxymethyl-pyrrolidine-1-carbonyl)-1a,2,3,3a,6a,6b-hexahydro-1H-cyclobuta[cd]inden-6-one 、 (1aR,3aR,6aS,6bS)-4,6b-Dimethoxy-3a-((S)-2-methoxymethyl-pyrrolidine-1-carbonyl)-1a,2,3,3a,6a,6b-hexahydro-1H-cyclobuta[cd]inden-6-one