CAS: 1065008-88-9—core tool molecule for glycoprotein engineering and glycobiology research

Glycan Oxazoline is a key compound in the fields of glycochemistry and glycobiology. As an efficient intermediate in glycosylation reactions, it plays a revolutionary role in glycoprotein engineering, vaccine development, and disease mechanism research. Such molecules not only promote the basic progress of glycoscience, but also become the cornerstone of precisely designed glycosylation modifications in modern biomedicine, enabling the innovation of next-generation therapies from therapeutic antibodies to cell therapy.

Chemical Information

Chemical name: CBNGO00039 (glycosyl oxazoline derivative)

Common name: CBNGO00039

Chemical formula: C20H33NO15

Molecular weight: 8527.48 g/mol

CAS number: 1065008-88-9

Category: Glycan Oxazoline

Structural features

The structure of Glycan Oxazoline is centered on the oxazoline ring, which is formed by intramolecular cyclization of the hydroxyl group of the sugar moiety and adjacent amino acids or sugar chains. Its unique design brings significant advantages:

Stable cyclic configuration: As an intermediate with moderate energy, the oxazoline ring exhibits excellent stability under physiological or mild reaction conditions. Compared with linear glycosyl donors, its cyclic structure reduces the risk of hydrolysis or degradation, ensuring the controllability of the glycosylation process.

High reaction selectivity: The C=N double bond in the ring and the adjacent electron-rich region enable it to act as an electrophile and specifically interact with glycosyltransferases or chemical catalysts to achieve precise connection of sugar chains. This selectivity avoids common side reactions in traditional glycosylation, such as isomerization or chain scission.

Flexible functionalization potential: By modifying the substituents on the sugar group or oxazoline ring, its hydrophilicity, charge and steric hindrance can be adjusted to adapt to the needs of different biological systems and provide a molecular basis for customized sugar chain synthesis.

Main applications and advantages

Key materials for the synthesis of glycoproteins and glycoconjugates

In the production of glycoprotein drugs (e.g., monoclonal antibodies, enzyme replacement therapies), Glycan Oxazoline serves as a glycosylation donor to achieve the installation of uniform, well-defined glycan structures through a chemoenzymatic strategy. For example, using glycosidase or glycosyltransferase catalysis, it can efficiently transfer complex glycans (such as high-mannose type or sialic acid-modified chains) to specific sites on proteins, thereby optimizing the pharmacodynamic properties of drugs, including half-life, targeting, and immunogenicity. This approach overcomes the challenges of natural glycosylation heterogeneity and provides a reliable path for large-scale production of therapeutic glycoproteins.

Optimization platform for vaccines and immunotherapy

Glycosylation patterns directly regulate immune cell recognition and response. For example, in the design of cancer vaccines or antiviral antibodies, specific sugar chains (such as core fucose-reduced types) can enhance antibody-dependent cell-mediated cytotoxicity. Glycan Oxazoline, as a standard compound, supports the synthesis of these functionalized sugar chains for use in modifying vaccine carriers or engineering antibodies, thereby increasing the intensity of immune activation and reducing off-target effects. In addition, its application in glycolipid antigen simulation has also opened up new directions for infectious diseases and tumor immunotherapy.

Probes and tools for studying glycobiological mechanisms

As a mimic of natural sugar metabolism intermediates, Glycan Oxazoline is widely used in enzymology and cell biology research. It can be used as a substrate or inhibitor of glycoside hydrolase or glycosyltransferase to help analyze the molecular mechanism of sugar chain processing, folding and degradation. In cell signaling studies, labeled Glycan Oxazoline derivatives can visualize the dynamic distribution of glycoproteins on membrane surfaces, revealing the regulatory role of glycosylation in cell adhesion, pathogen invasion, and tumor metastasis.

Assistance in disease diagnosis and biomarker development

Abnormal glycosylation is an early marker of a variety of diseases (e.g., cancer, neurodegenerative diseases). Glycan Oxazoline can be used to synthesize sugar chain standards with clear structures, serving the calibration of mass spectrometry or chip-based diagnostic technologies, and improving the accuracy of glycomic analysis. At the same time, its derivatives can be used as affinity probes to enrich low-abundance glycoproteins from biological samples and accelerate the discovery and verification of new biomarkers.

Conclusion

Glycan Oxazoline is not only a molecular entity in glycoscience, but also a bridge connecting chemical synthesis and life functions. As glycobiology increases its role in precision medicine, this class of compounds will continue to drive innovation in glycosylation technology, extending from basic research to the creation of innovative drugs and diagnostic tools, providing in-depth solutions to global health challenges.

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