(2S,3R)-3-((2S,3R,4R,5R,6R)-3-Azido-4,5-dihydroxy-6-hydroxymethyl-tetrahydro-pyran-2-yloxy)-2-(9H-fluoren-9-ylmethoxycarbonylamino)-butyric acid allyl ester

N-(9-fluorenylmethoxycarbonyl)-O-(2-azido-6-O-tert-butyldimethylsilyl-2-deoxy-α-D-galactopyranosyl)-L-threonine allyl ester

N-(9-fluorenylmethoxycarbonyl)-O-[2-acetamido-2-deoxy-6-O-(α,α-dimethyl-4-nitrobenzyl)dimethylsilyl-α-D-galactopyranosyl]-L-threonine allyl ester