N-Boc-L-Val-L-Pro methyl ester

N-Boc-L-缬氨酸

L-脯氨酸

Boc-L-缬氨酸羟基琥珀酰亚胺酯

1-[N-[(1,1-dimethylethoxy)carbonyl]-L-valyl]-L-proline phenylmethyl ester