4-氨甲基哌啶

N-benzylidene-1-(1-benzylpiperidin-4-yl)methanamine

N-[phenylmethylidene]-1-(piperidin-4-yl)methanamine

4-哌啶甲酸乙酯

1-苯甲酰基-4-哌啶羧酸乙酯