4291-19-4

Upstream product

• 41355-44-6 2-acetamido-2,4,6,-tri-O-acetyl-1-chloro-1,2-dideoxy-α-D-galactopyranose 
• 108-95-2 phenol 
• 3006-60-8 1,3,4,6-tetra-O-acetyl-2-acetamido-2-deoxy-α,β-D-mannopyranose 
• 4148-73-6 phenyl 2-acetamido-2-deoxy-3,4,6-tri-O-acetyl-α-D-mannopyranoside 
• 72-87-7 N-acetyl-D-mannosamine 
• 10378-06-0 2-methyl-(3,4,6-tri-O-acetyl-1,2-dideoxy-β-D-mannopyrano)-[2,1:4',5']-2-oxazoline 
• 76375-60-5 (3R,4R,5R,6R)-3-acetamido-6-(acetoxymethyl)tetrahydro-2H-pyran-2,4,5-triyl triacetate 

Downstream Products

• 865096-60-2 phenyl 2-acetamido-4,6-O-benzylidene-2-deoxy-3-O-pivaloyl-β-D-galactopyranoside 
• 865096-57-7 phenyl 2-acetamido-4,6-O-benzylidene-2-deoxy-β-D-galactopyranoside 

Relevant academic research and scientific papers

Facile synthesis of nitrophenyl 2-acetamido-2-deoxy-α-D- mannopyranosides from ManNAc-oxazoline

The synthetic procedures for a large-scale preparation of o- and p-nitrophenyl 2-acetamido-2-deoxy-α-D-mannopyranoside are described. The synthetic pathway employs the glycosylation of phenol with ManNAc oxazoline, followed by nitration of the aromatic moiety yielding a separable mixture of the o- and p-nitrophenyl derivative in a 2:3 ratio.

Synthesis of sulfated phenyl 2-acetamido-2-deoxy-D-galactopyranosides. 4-O-Sulfated phenyl 2-acetamido-2-deoxy-β-D-galactopyranoside is a competitive acceptor that decreases sulfation of chondroitin sulfate by N-acetylgalactosamine 4-sulfate 6-O-sulfotransferase

We have previously cloned N-acetylgalactosamine 4-sulfate 6-O-sulfotransferase (GalNAc4S-6ST), which transfers sulfate from 3′-phosphoadenosine 5′-phosphosulfate (PAPS) to the C-6 hydroxyl group of the GalNAc 4-sulfate residue of chondroitin sulfate A and forms chondroitin sulfate E containing GlcA-GalNAc(4,6-SO4) repeating units. To investigate the function of chondroitin sulfate E, the development of specific inhibitors of GalNAc4S-6ST is important. Because GalNAc4S-6ST requires a sulfate group attached to the C-4 hydroxyl group of the GalNAc residue as the acceptor, the sulfated GalNAc residue is expected to interact with GalNAc4S-6ST and affect its activity. In this study, we synthesized phenyl α- or -β-2-acetamido-2-deoxy-β-D-galactopyranosides containing a sulfate group at the C-3, C-4, or C-6 hydroxyl groups and examined their inhibitory activity against recombinant GalNAc4S-6ST. We found that phenyl β-GalNAc(4SO4) inhibits GalNAc4S-6ST competitively and also serves as an acceptor. The sulfated product derived from phenyl β-GalNAc(4SO4) was identical to phenyl β-GalNAc(4,6-SO 4). These observations indicate that derivatives of β-D-GalNAc(4SO4) are possible specific inhibitors of GalNAc4S-6ST.