4-(3-氟苯酰基)哌啶

1-叔丁基4-乙基4-氰基哌啶-1,4-二羧酸

N-Boc-4-氰基哌啶-4-甲酸甲酯

1-叔丁基 4-乙基 4-(氨基甲基)哌啶-1,4-二羧酸

6-fluoro-N-[[1-[(4-hydroxyoxan-4-yl)methyl]piperidin-4-yl]methyl]-3,3-dimethyl-2-oxoindole-1-carboxamide