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

(3aR,6aS)-2,2-dimethyl-3a,6a-dihydro-4H-[1,3]dioxolo[4,5-c]pyrrole

(-)-1-O-butyryl-3,4-O-isopropylidene-D-erythritol

(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