methyl 2,3-dideoxy-5,6-O-isopropylidene-4-O-p-tolylsulfonyl-D-erythro-hexonate

(R)-4-azido-4-((S)-2,2-dimethyl-1,3-dioxolan-4-yl)butanal

(R)-methyl 4-azido-4-((S)-2,2-dimethyl-1,3-dioxolan-4-yl)butanoate

DL-脯氨酸

苯甲氧羰酰琥珀酰亚胺