First O-glycosylation of hydroxamic acids
Mickaël Thomas1, Jean-Pierre Gesson, Sébastien Papot
1UMR 6514, Synthèse et Réactivité des Substances Naturelles, Université de Poitiers et CNRS, 40, Av. du Recteur Pineau, 86022 Poitiers, France.
The Journal of Organic Chemistry
|May 1, 2007
Summary
Researchers report the first O-glycosylation of hydroxamic acids using novel glycosyl donors. This efficient method synthesizes biologically relevant glycosyl hydroxamates in high yields.
Area of Science:
- Carbohydrate Chemistry
- Organic Synthesis
- Biochemistry
Background:
- Hydroxamic acids are versatile compounds with significant biological activities.
- O-glycosylation is a crucial post-translational modification, but its application to hydroxamic acids remains challenging.
- Developing efficient methods for glycosyl hydroxamate synthesis is important for medicinal chemistry.
Purpose of the Study:
- To report the first successful O-glycosylation of hydroxamic acids.
- To develop a novel and efficient synthetic route for glycosyl hydroxamates.
- To explore the utility of glycosyl N-phenyl trifluoroacetimidates as glycosyl donors.
Main Methods:
- Utilized glycosyl N-phenyl trifluoroacetimidates as glycosyl donors.
- Employed trimethylsilyl trifluoromethanesulfonate (TMSOTf) as a promoter.
- Conducted the reaction in dichloromethane with 4 Å molecular sieves.
Main Results:
- Achieved the first O-glycosylation of hydroxamic acids.
- Synthesized a diverse range of glycosyl hydroxamates, including glucosyl, galactosyl, mannosyl, glucuronyl, and ribosyl derivatives.
- Obtained products in good to high yields, demonstrating the efficiency of the method.
Conclusions:
- The developed method provides an effective and advantageous route for the synthesis of O-glycosylated hydroxamic acids.
- This approach offers a valuable tool for accessing novel glycosyl hydroxamates with potential biological applications.
- The study expands the scope of glycosylation methodologies in organic and medicinal chemistry.
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