Glycosylation efficiencies on different solid supports using a hydrogenolysis-labile linker.

Area of Science:

• Carbohydrate Chemistry
• Organic Synthesis
• Solid-Phase Synthesis

Background:

• Automated oligosaccharide assembly is crucial for synthesizing complex carbohydrates.
• Efficient solid-phase synthesis relies on appropriate linkers connecting monosaccharides to solid supports.
• Existing linkers may lack stability under various reaction conditions.

Purpose of the Study:

• To design and synthesize a novel hydrogenolysis-labile linker for automated oligosaccharide assembly.
• To evaluate the stability and performance of the new linker under acidic and basic conditions.
• To investigate the impact of different solid supports on glycosylation and cleavage efficiencies.

Main Methods:

• Design and synthesis of a new hydrogenolysis-labile linker.
• Coupling of the linker to various resins (solid supports).
• Assessment of glycosylation efficiency on functionalized resins.
• Evaluation of cleavage efficiency under hydrogenolysis conditions.
• Analysis of linker stability in acidic and basic media.

Main Results:

• A novel linker, stable under acidic and basic conditions, was successfully synthesized and coupled to resins.
• The linker demonstrated effective performance in glycosylation reactions.
• Cleavage efficiencies were investigated, indicating successful release of assembled oligosaccharides.
• Specific limitations regarding the choice of solid support for this synthesis strategy were identified.

Conclusions:

• The developed linker is a promising tool for automated oligosaccharide synthesis.
• The linker's stability broadens its applicability in complex carbohydrate assembly.
• The study highlights the importance of solid support selection in optimizing oligosaccharide synthesis outcomes.