1-(4-苯甲酰基-1-哌啶)-乙酮

1-乙酰基哌啶-4-酰基氯

4-(4-氟苯甲酰基)哌啶

methyl 1-acetylpiperidine-4-carboxylate

1-BOC-4-(4-氯苯甲酰)哌啶