676227-84-2

Upstream product

• 676227-82-0 ((2S,4aR,6S,7R,8R,8aS)-7-Azido-2-phenyl-6-phenylsulfanyl-hexahydro-pyrano[3,2-d][1,3]dioxin-8-yloxy)-tert-butyl-dimethyl-silane 
• 675876-42-3 (2S,3R,4R,5R,6R)-3-Azido-5-benzyloxy-6-hydroxymethyl-2-phenylsulfanyl-tetrahydro-pyran-4-ol 
• 819798-40-8 phenyl 2-azido-4,6-O-benzylidene-2-deoxy-1-thio-β-D-galactopyranoside 
• 148416-94-8 phenyl-3,4,6-tri-O-acetyl-2-azido-2-deoxy-1-thio-β-D-galactopyranoside 
• 819798-39-5 phenyl-2-azido-2-deoxy-1-thio-β-D-galactopyranoside 
• 1125-88-8 benzaldehyde dimethyl acetal 
• 676227-83-1 (2S,3R,4R,5R,6R)-3-Azido-5-benzyloxy-2-phenylsulfanyl-6-triethylsilanyloxymethyl-tetrahydro-pyran-4-ol 
• 675876-43-4 (2S,3R,4R,5R,6R)-3-Azido-5-benzyloxy-2-phenylsulfanyl-6-trimethylsilanyloxymethyl-tetrahydro-pyran-4-ol 
• 136945-14-7 O-[3,4,6-tri-O-acetyl-2-deoxy-2-(2,2,2-trichloroethoxycarbonylamino)-α-D-glucopyranosyl] trichloroacetimidate 

Relevant academic research and scientific papers

Efficient synthesis of core 2 class glycosyl amino acids by one-pot glycosylation approach

We describe the one-pot synthesis of core 2 class branched oligosaccharides initiated by chemo-selective glycosylation of silyl ether. Glycosylation of 6-O-silyl-4-benzyl-2-azido-thiogalactoside with glycosyl fluoride provided selectively 6-glycosylated thioglycoside without both O-glycosylation at the 3 position and S-glycosylation. Subsequent coupling of galactosyl fluoride and amino acids afforded the protected branched oligosaccharides in good yields.