5-[(1R,2R)-1,2-Bis-benzyloxy-2-((S)-2,2-dimethyl-[1,3]dioxolan-4-yl)-ethyl]-2-(tert-butyl-dimethyl-silanyl)-imidazole-1-sulfonic acid dimethylamide

(S)-2-Amino-2-((R)-2,2-dimethyl-[1,3]dioxolan-4-yl)-ethanol

(S)-2-Dibenzylamino-2-((R)-2,2-dimethyl-[1,3]dioxolan-4-yl)-ethanol

(2R,3R)-3-(tert-butoxycarbonylamino)-1,2-isopropylidenedioxybutan-4-ol

(3R,4R)-N-(tert-butoxycarbonyl)-4,5-O-isopropylidene-4,5-dihydroxypent-1-en-3-amide