(2S,3R)-4-azido-2,3-O-isopropylidene-1,2,3-butanetriol

(2R,3R)-4-azido-2,3-O-isopropylidene-2,3-dihydroxybutanal

(3aS,4R,6aR)-N-benzyl-2,2-dimethyl-5-propionyltetrahydro-3aH-[1,3]dioxolo[4,5-c]pyrrole-4-carboxamide

(3aS,4R,6aR)-N-((R)-3-(3-bromophenoxy)-2-(((tert-butyldimethylsilyl)oxy)methyl)propyl)-5-(2-methoxyacetyl)-2,2-dimethyltetrahydro-4H-[1,3]dioxolo[4,5-c]pyrrole-4-carboxamide

(3aS,4R,6aR)-N-((S)-3-(3-bromophenoxy)-2-(((tert-butyldimethylsilyl)oxy)methyl)propyl)-5-(2-methoxyacetyl)-2,2-dimethyltetrahydro-4H-[1,3]dioxolo[4,5-c]pyrrole-4-carboxamide