2-benzhydrylimino-1,2-diphenylethanone

2,2,4,5-tetraphenylimidazole

2-(9H-fluoren-2-yl)-4,5-diphenyl-1H-imidazole

6-hydroxy-9-phenylxanthen-3-one

3,4-二苯基环戊-3-烯-1-酮