(4S,5S,6S,7R)-4,5,6-Trihydroxy-7-hydroxymethyl-4,5,6,7-tetrahydro-[1,2,3]triazolo[1,5-a]pyridine-3-carboxylic acid methyl ester

2,3-di-O-tert-butyldimethylsilyl-D-glucono-1,4-lactone

(3R,4S,5R)-3,4-Bis-(tert-butyl-dimethyl-silanyloxy)-5-[(R)-2-(tert-butyl-dimethyl-silanyloxy)-1-hydroxy-ethyl]-dihydro-furan-2-one

(4S,5S,6S,7R)-4,5-Bis-(tert-butyl-dimethyl-silanyloxy)-7-(tert-butyl-dimethyl-silanyloxymethyl)-6-hydroxy-3,3a,4,5,6,7-hexahydro-[1,2,3]triazolo[1,5-a]pyridine-3-carboxylic acid methyl ester

2,3-bis-O-(tert-butyldimethylsilyl)-5,6-O-isopropylidene-D-glucono-1,4-lactone

(3R,4S,5S)-3,4-Bis-(tert-butyl-dimethyl-silanyloxy)-5-[(S)-2-(tert-butyl-dimethyl-silanyloxy)-1-hydroxy-ethyl]-dihydro-furan-2-one

Trifluoro-methanesulfonic acid (R)-1-[(2S,3S,4R)-3,4-bis-(tert-butyl-dimethyl-silanyloxy)-5-oxo-tetrahydro-furan-2-yl]-2-(tert-butyl-dimethyl-silanyloxy)-ethyl ester