2-(4-甲氧基苯基)-2-氧代乙酸乙酯

2-(4-methoxyphenyl)-2-oxoethyl formate

2-氨基-5-(4-硝基苯基)-1H-吡咯-3-羧酸乙酯

2-氨基-5-(4-(甲氧基羰基)苯基)-1H-吡咯-3-羧酸乙酯

ethyl 2-amino-5-(4-cyanophenyl)-1H-pyrrole-3-carboxylate