(R)-2,4-dihydroxy-3,3-dimethyl-N-(3-((4-methyl-2-oxo-2H-chromen-7-yl)amino)-3-oxopropyl)butanamide

D-(-)-泛酰内酯

(R,E)-benzyl 3-(2,4-dihydroxy-3,3-dimethylbutanamido)acrylate

3-氨基丙酸乙酯

β-丙氨酸