N-苄氧羰基-L-缬氨酸琥珀酰亚胺酯

(S)-3-methyl-2-(2-oxo-4,5-diphenyl-oxazol-3-yl)-butyric acid

methyl N-[N-(trifluoroacetyl)-L-valyl]-L-valinate

((R)-2-(1,3-dioxoisoindolin-2-yl)-3-methylbutanoyl)-D-valine

L-Valyl-L-valine benzyl ester