New chiral oligopyridines-4,4′-bis(disaccharide)-functionalised 2,2′-bipyridines and 4′-(disaccharide)-functionalised 2,2′:6′,2′′-terpyridines

A new class of oligopyridine ligands bearing disaccharides linked to the 4- and 4′-positions of a 2,2′-bipyridine or the 4′-position of a 2,2′:6′,2″-terpyridine metal-binding domain are described. Representative ligands with furanosylfuranose and pyranosylpyranose (cellobiose) substituents have been prepared.