4-哌啶乙酸乙酯

benzyl 4-(4-fluorophenyl)-4-hydroxypiperidine-1-carboxylate

乙基4-哌啶基亚基乙酸酯

1-N-Cbz-哌啶-4-氧基乙酸

4-溴哌啶-1-甲酸苄酯