2-​Pyrrolidineacetic acid, 1-​[(1,​1-​dimethylethoxy)​carbonyl]​-​, methyl ester, (2S)​-

1-Pyrrolidinecarboxylic acid, 2-(2-hydroxyethyl)-, 1,1-dimethylethyl ester, (2S)-

(L)-2-二氮杂乙酰基吡咯烷-1-羧酸叔丁酯

BOC-L-脯氨酸

Boc-D-Pro-Cl