重氮甲烷

SUC-ALA-ALA-PRO-VAL-PNA

N-(苄氧羰基)-L-丙氨酰-L-丙氨酸

N-carbpbenzoxy-alanine pentafluorophenyl ester

N-carbobenzoxy-alanyl-alanyl-prolyl-valine p-nitroanilide