N-formyl-N-(2,3,4,6-tetra-O-pivaloyl-β-D-galactopyranosyl)-(R)-α-amino-5-cyano-pentanoic acid-N'-tert-butyl-amide

DL-a-氨基己二酸

(2RS)-α-Ethyl ω-methyl 2-(N-Acetylamino)adipate

(+/-)-2-chloroacetaminohexanedioic acid

5-oxopentanenitrile