3-(4-甲基-哌嗪-1-基)-丙酸乙酯

2-氰基-戊烷二酸二乙酯

triethyl 3-cyanopentane-1,3,5-tricarboxylate

3-吡咯烷-甲酸乙酯

3-乙酰基戊烷-1,3,5-三羧酸三乙酯