Glycoconjugates of sialic acid derivates, methods for their production and use thereof

摘要

The present invention relates to glycoconjugates containing a sialic acid derivate of general formula (I) and wherein the sialic acid derivate of general formula (I) is conjugated to a mono-, di- or oligosaccharide with up to 40 glycosidically linked, optionally branched sugar residues representing furanose and/or pyranose rings, which are linked N- or O-glycosidically to the polypeptide. The sialic derivatives of general formula (I) are useful for producing pharmaceutical compositions for immunosuppression, cell protection, stimulation of hematopoesis regulation of hormonal secretion and hormonal activation.