174783-86-9

Upstream product

• 4098-06-0 triacetyl-D-galactal 
• 282736-08-7 Phenyl 2-azido-4,6-benzylidene-3-O-chloroacetyl-2-deoxy-1-seleno-α-D-galactopyranoside 
• 282736-10-1 N^α-fluoren-9-ylmethoxycarbonyl-O-[2-azido-4,6-O-benzylidene-2-deoxy-3-O-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-α-D-galactopyranosyl]-L-threonine benzyl ester 
• 282736-09-8 N-(9-fluorenylmethoxycarbonyl)-O-(2-azido-4,6-O-benzylidene-3-O-(2-chloroacetyl)-2-deoxy-α-D-galactopyranosyl)-L-threonine benzyl ester 
• 167074-40-0 phenyl 3-O-acetyl-2-azido-4,6-O-benzylidene-2-deoxy-1-seleno-α-D-galactopyranoside 
• 215029-93-9 N^α-fluoren-9-ylmethoxycarbonyl-O-(2-azido-4,6-O-benzylidene-2-deoxy-α-D-galactopyranosyl)-L-threonine benzyl ester 
• 862851-12-5 phenyl 2-azido-2-deoxy-1-seleno-α-D-galactopyranoside 
• 150809-76-0 phenyl 3,4,6-tri-O-acetyl-2-azido-2-deoxy-1-seleno-α-D-galactopyranoside 
• 13992-16-0 1-deoxy-1-(phenylthio)-2,3,4,6-tetra-O-acetyl-β-D-galactopyranose 
• 3068-32-4 1-bromo-1-deoxy-2,3,4,6-tetra-O-acetyl-a-D-galactopyranoside 
• 384346-84-3 N^α-fluoren-9-ylmethoxycarbonyl-3-O-[2-azido-4,6-O-benzylidene-2-deoxy-3-O-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-α-D-galactopyranosyl]-L-threonine allyl ester 
• 384346-81-0 N^α-fluoren-9-ylmethoxycarbonyl-3-O-(2-azido-4,6-O-benzylidene-3-O-tert-butyldimethylsilyl-2-deoxy-α-D-galactopyranosyl)-L-threonine allyl ester 
• 384346-80-9 4-methylphenyl 2-azido-4,6-O-benzylidene-3-O-tert-butyldimethylsilyl-2-deoxy-1-thio-β-D-galactopyranoside 
• 273944-57-3 N^α-fluoren-9-ylmethoxycarbonyl-3-O-(2-azido-4,6-O-benzylidene-2-deoxy-α-D-galactopyranosyl)-L-threonine allyl ester 

Relevant academic research and scientific papers

Synthesis of gold nanoparticles bearing the Thomsen-Friedenreich disaccharide: A new multivalent presentation of an important tumor antigen

Herein we describe the synthesis gold nanoshells encapsulated with up to 90 units of the Thomsen-Friedenreich (TF) tumor-associated carbohydrate antigen (TACA) disaccharide (Galβ1-3GalNAc-α-O-Ser/Thr) as well as the assembly of a suitably linked designer

Chemoenzymatic synthesis of sialylated glycopeptides derived from mucins and T-cell stimulating peptides

The Tn, T, sialyl-Tn, and 2,3-sialyl-T antigens are tumor-associated carbohydrate antigens expressed on mucins in epithelial cancers, such as those affecting the breast, ovary, stomach, and colon. Glycopeptides carrying these antigens are of interestfor development of cancer vaccines and a short, chemoenzymatic strategy for their synthesis is reported. Building blocks corresponding to the Tn (Ga1NAcα-Ser/Thr) and T [Galβ(1→3)Ga1NAcα-Ser/Thr] antigens, which are relatively easy to obtain by chemical synthesis, were prepared and then used in the synthesis of glycopeptides on the solid phase. Introduction of sialic acid to give the sialyl-Tn [Neu5Acα(2→6)Ga1NAcα-Ser/Thr] and 2,3-sialyl-T [Neu5Acα(2→3)Ga1β(1→3)Ga1NAcα-Ser/ Thr] antigens is difficult when performed chemically at the building block level. Sialylation was therefore carried out with recombinant sialyltransferases in solution after cleavage of the Tn and T glycopeptides from the solid phase. In the same manner, the core 2 trisaccharide [Ga1β1→3(G1cNAcβ1→6)Ga1NAc] was incorporated in glycopeptides containing the T antigen by using a recombinant N-acetylglucosaminyltransferase. The outlined chemoenzymatic approach was applied to glycopeptides from the tandem repeat domain of the mucin MUCl, as well as to neoglycosylated derivatives of a T cell stimulating viral peptide.

Facile solid-phase synthesis of an antifreeze glycoprotein

The antifreeze glycoproteins (AFGPs) 1 are composed of a repeating tripeptide unit (Ala-Thr-Ala) in which the threonine residue is glycosylated with the disaccharide β-D-Gal-(1 → 3)-α-D-GalNAc. A new procedure for synthesizing AFGPs using Fmoc-(Ac4/

A concise synthesis of the O-glycosylated amino acid building block; using phenyl selenoglycoside as a glycosyl donor

A new glycosylation methodology for synthesizing a protected TF antigen is described. The key step is to use phenyl selenoglycoside as a glycosyl donor, thereby successfully establishing O-linked Fmoc-protected threoninyl monosaccharide in an excellent yi