13264-02-3

Upstream product

• 98-88-4 benzoyl chloride 
• 3396-99-4 methyl α-D-galactopyranoside 
• 3601-36-3 methyl 2,3,6-tri-O-benzoyl-α-D-galactopyranoside 
• 333-20-0 potassium thioacyanate 
• 79580-70-4 Methyl 2,3,6-tri-O-benzoyl-4-O-trifluoromethanesulfonyl-α-D-galactopyranoside 
• 4137-34-2 methyl 2,3,6-tri-O-benzoyl-4-O-methylsulphonyl-α-D-galactopyranoside 

Downstream Products

• 19488-41-6 Methyl-2,3,6-tri-O-benzoyl-4-desoxy-α-D-xylo-hexopyranosid 
• 118868-80-7 methyl 2,3,6-tri-O-benzoyl-4-thio-α-D-glucopyranoside 
• 79580-74-8 methyl 2,6-di-O-benzoyl-4-S-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-4-thio-α-D-glucopyranoside 
• 79580-73-7 C₂₂H₂₄O₇S 
• 79580-84-0 C₂₉H₂₈O₈S 
• 5658-14-0 4-deoxy-D-xylo-hexose 
• 13241-00-4 methyl 4-deoxy-α-D-xylo-hexopyranoside 
• 79580-77-1 1,3-di-O-acetyl-2,6-di-O-benzoyl-4-S-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-4-thio-D-glucopyranoside 
• 41897-46-5 methyl 2,3,6-tri-O-benzoyl-4-S-benzoyl-4-thio-α-D-glucopyranoside 

Relevant academic research and scientific papers

Streamlined Iterative Assembly of Thio-Oligosaccharides by Aqueous S-Glycosylation of Diverse Deoxythio Sugars

A streamlined iterative assembly of thio-oligosaccharides was developed by aqueous glycosylation. Facile syntheses of various deoxythio sugars with the sulfur on different positions from commercially available starting materials were described. These syntheses featured efficient chemical methods including our recently reported BTM-catalyzed site-selective acylation. The resulting deoxythio sugars could then be used for the Ca(OH)2-promoted protecting group-free S-glycosylation in water at room temperature. The aqueous glycosylation reaction proceeded smoothly to afford the corresponding 1,2-trans S-glycosides in good yields with high chemo- and stereoselectivity. An appropriate choice of protecting groups for the thiol in the glycosyl donor was necessary for the development of iterative synthesis of thio-oligosaccharides. The aqueous glycosylation was then applied to the synthesis of a trimannoside moiety of N-linked glycans core region.

SYNTHESIS OF THIOLACTOSE (4-S-β-D-GALACTOPYRANOSYL-4-THIO-D-GLUCOPYRANOSE)

The potential enzyme-inducer, 4-S-β-D-galactopyranosyl-4-thio-D-glucopyranose, thiolactose (20), was synthesized via two routes.The intermediate, methyl 2,3,6-tri-O-benzoyl-4-S-cyano-4-thio-α-D-glucopyranoside (5), was obtained in high yield from methyl α