N-[(3R)-四氢-2,5-二氧代-3-呋喃基]氨基甲酸苄酯

(R)-3-(benzyloxycarbonylamino)-4-hydroxybutanoic acid

(R)-benzyl 1-(5-oxotetrahydrofuran-3-yl)-2-(2,2,2-trifluoroacetyl)hydrazinecarboxylate

(2S)-2-tert-butoxycarbonylamino-4-hydroxybutyric acid benzyl ester

N-苄氧羰基-D-天冬氨酸