5-(4-BOC-哌嗪)-2-硝基苯甲醚

2-甲基-2-丙基4-(3-氯苄基)-1-哌嗪羧酸酯

tert-butyl 4-[2-(4-aminophenyl)ethyl]piperazine-1-carboxylate

N-丙基-1-哌嗪甲酰胺

4-(3-甲酰基-4-羟基苯基)哌嗪-1-羧酸叔丁酯