4-(2-氧代乙基)哌啶-1-羧酸叔丁酯

4-(4-羟基丁基)哌啶-1-甲酸叔丁酯

sodium,(1-hydroxy-1-phosphono-2-pyridin-4-ylethyl)phosphonic acid

4-(N-Boc-4-哌啶基)丁酸

1-叔丁氧羰基-4-哌啶乙酸