(3S,4S)-4-Dibenzylamino-4-((R)-2,2-dimethyl-[1,3]dioxolan-4-yl)-3-hydroxy-1-thiazol-2-yl-butan-1-one

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

ethyl (2S,3S)-3,4-O-isopropylidene-2,3,4-trihydroxybutanoate

(1R,5R)-N-(tert-butoxycarbonyl)-5,6-O-isopropylidene-5,6-dihydroxy-2-pyrroline

(2S)-benzyloxy-[(4S)-2,2-dimethyl-[1,3]dioxolan-4-yl]-acetaldehyde