生成 2-[4-(3-Benzhydrylidene-4-isopropylidene-2,5-dioxo-pyrrolidin-1-yl)-phenyl]-4,4-dimethyl-9-phenyl-4,4a-dihydro-benzo[f]isoindole-1,3-dione 、 2-[4-(3-Benzhydrylidene-4-isopropylidene-2,5-dioxo-pyrrolidin-1-yl)-phenyl]-4,4-dimethyl-9-phenyl-3a,4-dihydro-benzo[f]isoindole-1,3-dione