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Fluorous-tag Assisted Synthesis of a Glycosaminoglycan Mimetic Tetrasaccharide as a High-Affinity FGF-2 and Midkine Ligand

Fluorous-tag Assisted Synthesis of a Glycosaminoglycan Mimetic Tetrasaccharide as a High-Affinity FGF-2 and Midkine Ligand

Susana Maza, Noel Gandia-Aguado, José L de Paz, Pedro M Nieto

Bioorg Med Chem. 2018 Mar 1;26(5):1076-1085.

PMID: 29409708

Abstract:

Here, we present the preparation of a sulfated, fully protected tetrasaccharide derivative following the glycosaminoglycan (GAG)-related sequence GlcNAc-β(1 → 4)-Glc-β(1 → 3). The tetramer was efficiently assembled via an iterative glycosylation strategy using monosaccharide building blocks. A fluorous tag was attached at position 6 of the reducing end unit enabling the purification of reaction intermediates by simple fluorous solid phase extraction. Fluorescence polarization competition experiments revealed that the synthesized tetrasaccharide strongly interacts with two heparin-binding growth factors, midkine and FGF-2 (IC50 of 270 nM and 2.4 µM, respectively). Our data indicate that this type of oligosaccharide derivatives, displaying sulfates, hydrophobic protecting groups and a fluorinated tail can be considered as interesting GAG mimetics for the regulation of relevant carbohydrate-protein interactions.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP92448221	3′-Sialyl-Lewis-a tetrasaccharide		92448-22-1	Price

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