N-叔丁氧羰基-3-[(苄氧羰基)氨基]-L-丙氨酸

Boc-L-2-amino-3-ureidopropionic acid

(S)-3-benzyloxycarbonylamino-2-tert-butoxycarbonylaminopropionamide

(S)-4-(3-Methyl-3-phenyl-ureidomethyl)-5-oxo-oxazolidine-3-carboxylic acid tert-butyl ester

(S)-4-(3-Benzyl-ureidomethyl)-5-oxo-oxazolidine-3-carboxylic acid tert-butyl ester