196941-74-9

Upstream product

• 107802-80-2 (2S,3R,4R,5S,6R)-3,4,5-Tris-benzyloxy-2-methyl-6-methylsulfanyl-tetrahydro-pyran 
• 13343-63-0 benzyl 4,6-O-benzylidene-2-acetylamino-2-deoxy-α-D-glucopyranoside 
• 196941-73-8 N-[(4aR,6S,7R,8R,8aS)-6-Benzyloxy-2-phenyl-8-((2S,3S,4R,5R,6S)-3,4,5-tris-benzyloxy-6-methyl-tetrahydro-pyran-2-yloxy)-hexahydro-pyrano[3,2-d][1,3]dioxin-7-yl]-acetamide 

Relevant academic research and scientific papers

A convenient and efficient synthesis of sialyl Lewis X.

A convenient synthesis of the sialyl Lewis X (sLe(x)) tetrasaccharide, NeuAc alpha 2-3Gal beta 1-4(Fuc alpha 1-3)GlcNAc (8), as a carbohydrate ligand for selectins is described. The key step is the reaction between NeuAc alpha 2-3GalSMe (5) as a glycosyl donor and the suitably protected Fuc alpha 1-3GlcNAc derivative (4) as the glycosyl acceptor by using dimethyl(methylthio)sulfonium triflate (DMTST) as the promoter.

An economical synthesis of Lewis X, sialyl lewis X and their α-galactosyl analogues

Economical syntheses of the Lewis X trisaccharide 8 and sialyl Lewis X tetrasaccharide 18 epitopes and the syntheses of the α-galactosyl epimers 9 and 20 of these structures are described. Thioglycosides 2, 5, 11 and 15 were used as glycosyl donors to con