tert-butyl 2-(2-ethoxy-2-oxoethyl)-1,2,3,4-tetrahydroquinoline-1-carboxylate

ethyl (E)-5-(2-nitrophenyl)-2-pentenoate

(2-硝基苯基)乙酸甲酯

3-(2-硝基-苯基)-丙醛

methyl (+/-)-2-(2-nitrophenyl)-4-pentenoate