benzyl N-(8-aminooctyl)carbamate

benzyl N-[1-(hydroxymethyl)cyclopentyl]carbamate

4-(2-乙氧基-2-氧代亚乙基)哌啶-1-羧酸苄酯

(2s,5r)-1-cbz-5-羟基-6-甲氧基哌啶甲酸甲酯

4-(4-氧代哌啶-1-基)哌啶-1-羧酸苄酯