Derivatives of n-desulfated glycosaminoglycans and use as drugs

Abstract

A glycosaminoglycan derivative which is obtainable by a process that includes the steps of N-desulfation of from 25% to 100% of the N-sulfated residues of a glycosaminoglycan, and oxidation, by periodate at a pH of from 5.5 to 10.0, of from 25% to 100% of the 2-N-, 3-O-non-sulfated glucosamine residues, and of the 2-O-non-sulfated uronic acid residues of said glycosaminoglycan, under conditions effective to convert adjacent diols and adjacent OH/NH2 to aldehydes. The process further includes reduction, by sodium borohydride, of said oxidized glycosaminoglycan, under conditions effective to convert said aldehydes to alcohols, where the glycosaminoglycan is heparin, low molecular weight heparin, heparan sulfate or fractions thereof.

Dependencies are inferred from the claim text.