A set of eight original C-disaccharides based on d-mannose or l-fucose scaffold was synthesized.
Their affinity to DC-SIGN ECD was evaluated by a SPR competition assay.
C-Disaccharides were shown for the first time to be efficient antagonist of DC-SIGN receptor.
l-Fucose glycomimetics open the space for the development of strong binding ligands.
Stable C-glycoside ligands are attractive candidates for the construction of multivalent systems.