Boc-L-丙氨酸 N-丁二酰亚胺酯

L-脯氨酸

N-t-butyloxycarbonyl-L-alanyl-L-proline benzyl ester

4-(2-phenylacetoxy)benzyl (tert-butoxycarbonyl)-L-alanyl-L-prolinate

N-Boc-L-Ala-L-Pro methyl ester