705932-41-8: Key molecules for sugar nucleotide modification and functional exploration

In the field of glycobiology, sugar nucleotides serve as activated sugar donors and drive various glycosylation reactions. These reactions are critical for the modification of proteins and lipids, affecting cell function, immune response, and disease progression. UDP-4-fluoro-4-deoxy-D-acetylglucosamine disodium salt, as a fluorine-modified sugar nucleotide, provides new perspectives and tools for in-depth study of glycosylation mechanisms and the development of sugar-related therapies through its unique chemical properties. These molecules are not only core components of natural metabolic pathways, but also show transformative potential in synthetic biology and medicinal chemistry.

Chemical Information

Chemical name: UDP-4-fluoro-4-deoxy-D-acetylglucosamine disodium salt

Common name: UDP-2-(acetylamino)-4-F-D-glucosamine disodium salt

Chemical formula: C17H27FN3NaO16P2

Molecular weight: 633.34 g/mol

CAS number: 705932-41-8

Category: Sugar Nucleotides

Structural features

The structure of UDP-4-fluoro-4-deoxy-D-acetylglucosamine disodium salt combines a uridine diphosphate (UDP) core and a modified sugar moiety. Its main features include:

Fluorine atom substitution effect: On the 4th carbon of the sugar ring, a fluorine atom replaces the original hydroxyl or hydrogen atom, forming a 4-fluoro-4-deoxygen structure. As the most electronegative element, the introduction of fluorine results in high bond energy and low polarizability of C-F bonds, thereby significantly enhancing the chemical stability and metabolic resistance of the molecule. This modification can also subtly adjust the chair conformation of the sugar ring, affecting its binding geometry and dynamics with enzymes or receptors.

Acetamido functional group: Position 2 of the sugar moiety carries an acetamido group, which simulates the structure of natural N-acetylglucosamine (GlcNAc), but the fluorine modification makes it different in reactivity and molecular recognition. The acetylamino group provides hydrogen bond donor and acceptor capabilities, promoting specific interactions, while the fluorine atoms may increase hydrophobicity or alter electron distribution.

Disodium salt and water solubility: As the disodium salt form, this compound exhibits good solubility in aqueous solutions, making it easy to use in biochemical systems such as buffers or cell culture media. The UDP part serves as a universal glycosyl donor framework and is highly compatible with glycosyltransferases, while the fluoroglycosyl serves as a functional module to expand the scope of applications.

Together, these structural features make this molecule a versatile probe and building block in glycosylation networks, suitable for multiple scenarios from basic research to application development.

Main applications and advantages

Enzymatic mechanism research and inhibitor development

Glycosyltransferase catalyzes the transfer of sugar groups from sugar nucleotides to proteins, lipids or other sugars and is the core enzyme of the glycosylation pathway. UDP-4-fluoro-4-deoxy-D-acetylglucosamine disodium salt can be used as a substrate analog to explore the catalytic specificity, kinetic parameters and reaction mechanism of these enzymes. Fluorine atoms may mimic transition states or serve as stereoelectron probes to help resolve key residues in enzyme active sites. In addition, this compound is often used as a competitive inhibitor to design therapeutics targeting glycosyltransferases. These enzymes are often dysregulated in cancer, inflammation and infectious diseases, so related inhibitors are promising in the development of anti-cancer or anti-viral drugs.

Synthesis and optimization of carbohydrate drugs

Fluorosaccharide analogues have attracted much attention in medicinal chemistry because fluorine modification can improve the metabolic stability, membrane permeability, and target affinity of compounds. This molecule serves as a UDP-activated fluorinated sugar precursor and can be used for chemical or enzymatic synthesis of fluorinated oligosaccharides, glycosides or glycoconjugates. For example, in antibiotic development, fluorinated sugars may interfere with bacterial cell wall synthesis; in sugar vaccine design, fluorinated antigens may enhance immunogenicity or reduce cross-reactivity; and in protein therapeutics, fluorinated sugar modifications may extend the half-life of biologics and reduce immunogenicity.

Cellular glycomics and disease biomarker exploration

Dynamic changes in glycosylation are associated with multiple disease states, such as tumor progression, diabetic complications, and neurodegenerative diseases. By introducing UDP-4-fluoro-4-deoxy-D-acetylglucosamine disodium salt into cellular metabolism, the incorporation of fluorinated sugars into glycoproteins or glycolipids can be tracked and quantitative analysis can be performed using nuclear magnetic resonance (NMR) or mass spectrometry signals of fluorine atoms. This approach helps map glucose metabolism, reveal disease-specific modification patterns, and discover potential diagnostic markers or therapeutic targets.

Synthetic biology and glycoengineering applications

In synthetic biology, sugar nucleotides are used to engineer microorganisms or cell factories to produce customized polysaccharides or sugar structures. Fluorine modification of the compound may confer novel properties to the product, such as enhanced enzyme resistance or altered physicochemical behavior. For example, in biomaterials development, fluorinated glycosaminoglycans can improve the biocompatibility of scaffolds; in enzyme replacement therapy, fluorinated sugar-modified enzymes may improve stability; and in cell surface engineering, the molecules can be used to regulate adhesion or signaling events.

Conclusion

UDP-4-fluoro-4-deoxy-D-acetylglucosamine disodium salt represents an example of chemical modification of sugar nucleotides, deeply integrating the unique physicochemical properties of fluorine atoms with fundamental processes of glycobiology. From deciphering the sugar code of living systems to creating a new generation of glycosylation therapies, this molecule continues to push the frontiers of science. As glycoscience becomes more and more important in precision medicine and industrial biotechnology, its value in exploring cell communication, disease mechanisms and innovative drug design will surely be further demonstrated, providing lasting impetus for interdisciplinary research.

The above information is provided by the editor of KASONS and is for scientific research only.