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

LYS-ILE-PRO-TYR-ILE-LEU

2-(2-氯乙基)-2-氰基吡咯烷-1-羧酸叔丁酯

2-甲基-2-丙基(2S)-2-[(4-硝基苯基)氨基甲酰]-1-吡咯烷羧酸酯

(L)-Methionyl-(L)-prolyl-p-nitroanilide