2,2'-(4-nitrophenylmethylene)bis(3-hydroxy-5,5- dimethyl-2-cyclohexene-1-one)

1,2-苯二胺

3-羟基-5,5-二甲基环己-2-烯-1-酮

对硝基苯甲醛

N-(chloro(4-nitrophenyl)methyl)pyridinium chloride