2-(O-硝基苯基)乙酰肼

N,N'-diacetyl-N-(2-nitro-phenyl)-hydrazine

4-(乙酰基氧基)-6-甲氧基-2-萘羧酸乙酯

2-(4-氟苯基)-2-氧代乙酸乙酯

3-溴-2-羟基-5-甲氧基苯甲醛