1,3-diphenylbenz(f)inden-2-one-dimethyl fumarate adduct

methyl 4-hydroxy-3-methylbut-2-enoate

1,2,3,4-tetraphenylbenzene

tetramethyl 1,2,3,4,5,6,7,8-octahydro-1,4:5,8-diepoxyanthracene-2,3,6,7-tetracarboxylate

dimethyl 2-aminobut-2-enedioate