Synthesis and biological evaluation of 1,2,3-triazole linked sialic acid derivatives as neuraminidase inhibitors
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Authors
Weïwer, M.
Chen, C.C.
Kemp, M.M.
Linhardt, Robert J.
Issue Date
2009-06-01
Type
Article
Language
ENG
Keywords
Biology , Chemistry and chemical biology , Chemical and biological engineering , Biomedical engineering
Alternative Title
Abstract
α-Sialic acid azide 1 has been used as a substrate for the efficient preparation of 1,2,3-triazole derivatives of sialic acid using the copper-catalyzed azide-alkyne Huisgen cycloaddition ("click chemistry"). Our approach is to generate non-natural N-glycosides of sialic acid that are resistant to neuraminidase catalyzed hydrolysis as opposed to the natural O-glycosides. These N-glycosides would act as neuraminidase inhibitors to prevent the release of new virions. As a preliminary study, a small library of 1,2,3-triazole-linked sialic acid derivatives has been synthesized in 71-89% yield. A disaccharide mimic of sialic acid has also been prepared using the α-sialic acid azide 1 and a C-8 propargyl sialic acid acceptor in 68% yield. A model sialic acid coated dendrimer was also synthesized from a per-propargylated pentaerythritol acceptor. These novel sialic acid derivatives were then evaluated as potential neuraminidase inhibitors using a 96-well plate fluorescence assay; micromolar IC50 values were observed, comparable to the known sialidase inhibitor Neu5Ac2en.
Description
European Journal of Organic Chemistry, 2611–2620
Note : if this item contains full text it may be a preprint, author manuscript, or a Gold OA copy that permits redistribution with a license such as CC BY. The final version is available through the publisher’s platform.
Note : if this item contains full text it may be a preprint, author manuscript, or a Gold OA copy that permits redistribution with a license such as CC BY. The final version is available through the publisher’s platform.
Full Citation
Synthesis and biological evaluation of 1,2,3-triazole linked sialic acid derivatives as neuraminidase inhibitors, M. Weïwer, C.-C. Chen, M. M. Kemp, R. J. Linhardt, European Journal of Organic Chemistry, 2611–2620, 2009.
Publisher
European Chemical Societies Publishing
Terms of Use
Journal
Volume
Issue
PubMed ID
DOI
ISSN
10990690
1434193X
1434193X