3,4-O-isopropylidene-1-deoxy-(5,5'-2(H)2)-D-xylulose

(4S,5S)-5-((2S,4R)-4-Benzyloxy-2-dimethoxymethyl-pyrrolidine-1-carbonyl)-2,2-dimethyl-[1,3]dioxolane-4-carboxylic acid methyl ester

(4S,5R)-isopropyl 5-(((4R,5S)-5-(aminomethyl)-2,2-dimethyl-1,3-dioxolane-4-carboxamido)methyl)-2,2-dimethyl-1,3-dioxolane-4-carboxylate

(4S,5R)-methyl 5-(hydroxymethyl)-2,2-dimethyl-1,3-dioxolane-4-carboxylate