6,8,15,17-tetraphenyl-6,17:8,15-dioxido-6,6a,7,7a,8,15,15a,16,16a,17-decahydro-7,16-heptacene quinone

1,3-diphenylbenzo[f][2]benzofuran

1,3-dihydro-3-phenylnaphtho[2,3-c]-furan-1-one

2,3-萘二羧酸酐

1,3-dihydro-1,3-diphenylnaphtho[2,3-c]-furan-1-ol