5-acetamido-3,5-dideoxy-8,9-O-isopropylidene-2-O-triethylsilyl-4-O-tert-butyldimethylsilyl-D-glycero-D-galacto-nonulopyranosic acid

5-acetamido-7-O-acetyl-3,5-dideoxy-8,9-O-isopropylidene-2-O-triethylsilyl-4-O-tert-butyldimethylsilyl-D-glycero-D-galactononulopyranosic acid

(2R,4S,5S,6R)-5-acetamido-6-((1R,2R)-1-acetoxy-2,3-dihydroxypropyl)-4-((tert-butyldimethylsilyl)oxy)-2-((triethylsilyl)oxy)tetrahydro-2H-pyran-2-carboxylic acid

5-acetamido-3,5-dideoxy-8,9-O-isopropylidene-4-O-tert-butyldimethylsilyl-D-glycero-D-galacto-nonulopyranosic acid

5-acetamido-2-O-acetyl-3,5-dideoxy-4-O-tert-butyldimethylsilyl-D-glycero-D-galacto-nonulopyranosic acid