5,6-dimethyl-1-(4-nitrophenyl)-2-phenyl-1,1a-dihydroazireno[1,2-a]quinoxaline

(Phenylcarbonylmethylene)triphenylphosphorane

2,2-二[(4-甲基苯基)氨基]-1-苯乙酮

2,2-bis(4-methoxyanilino)-1-phenylethanone

2,2-二苯胺基-1-苯乙酮