(S)-2-hydroxyimino-3-(N-tritylamino)oxolane

(3S)-4-methoxy-4-oxo-3-[(2,2,2-trifluoroacetyl)amino]butanoate

methyl 2-amino-4-((2-methoxyethoxy)methoxy)butanoate

天冬酰胺

(RS)-α-amino-γ-butyrolactone hydrochloride