1-甲基-4-哌啶甲醛

1-甲基-2-氧代-1,2-二氢吡啶-4-羧酸

(2-pyridin-4-yl-1,3-dioxolan-2-yl)methanol

[2-(1-benzylpiperidin-4-yl)-1,3-dioxolan-2-yl]methanol

(2-pyridin-4-yl-1,3-dioxolan-2-yl)methyl formate