1,3-二甲基-5,5-二苯基-2,4-咪唑烷二酮

2-(5-chloro-2-nitrophenyl)-4,5-diphenyl-1H-imidazole

2,4-ditert-butyl-6-(4,5-diphenyl-1,3-dihydroimidazol-2-ylidene)cyclohexa-2,4-dien-1-one

2,3-diphenyl-5-(trifluoromethyl)quinoxaline

2,5-bis(4-methoxyphenyl)-3,4-diphenylcyclopenta-2,4-dien-1-one