| abstract |
Method for producing a modified oligonucleotide, wherein at least one polymer, preferably polyalkylene oxide, and/or a compound is covalently bound to the 5′-end or the 3′-end of the oligonucleotide via native ligation forming a native ligation site, with the proviso that the polymer and/or the compound is not a protein or peptide, if only the 5′-end of the oligonucleotide is modified by binding of the polymer or compound via native ligation. The invention is further directed to a modified oligonucleotide obtainable by the inventive method as well as the use of such modified oligonucleotide for the preparation of a medicament for preventing and/or treating a tumor, formation of metastasis, an immune disease or disorder, a cardiovascular disease or disorder, and/or a viral disease or disorder. |