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Updated: Feb 11, 2026

Targeting Cysteine Thiols for in Vitro Site-specific Glycosylation of Recombinant Proteins
Published on: October 4, 2017
Chemoselective Iterative Dehydrative Glycosylation.
Hien M Nguyen1, Jennifer L Poole1, David Y Gin1
1Department of Chemistry University of Illinois Urbana, IL 61801 (USA) Fax: (+1) 217-244-8024.
A novel chemoselective glycosylation method uses nucleophilicity differences to rapidly build complex oligosaccharides. This approach avoids extensive protective groups and anomeric leaving group differentiation, simplifying carbohydrate synthesis.
Area of Science:
- Carbohydrate Chemistry
- Organic Synthesis
Background:
- Traditional glycosylation methods require extensive use of protective groups.
- Anomeric leaving group differentiation is often necessary for selective carbohydrate assembly.
Purpose of the Study:
- To develop a new chemoselective glycosylation strategy.
- To simplify the synthesis of complex oligosaccharides.
Main Methods:
- Exploiting the inherent nucleophilicity difference between alkyl alcohols and free hemiacetals.
- Employing a controlled dehydrative coupling reaction.
Main Results:
- Rapid assembly of complex oligosaccharides was achieved.
- Eliminated the need for extensive protective group manipulations.
- Eliminated the need for anomeric leaving group differentiation.
Conclusions:
- The new strategy offers a more efficient route to oligosaccharide synthesis.
- This method simplifies complex carbohydrate assembly by leveraging inherent reactivity differences.
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