HEPARIN DEGRADATION VIA ASCORBIC ACID, CUPRIC ACETATE AND HYDROGEN PEROXIDE

摘要

Process for the preparation of oligosaccharides and oligosaccharide fractions by degradation of heparin, which comprises submitting to incubation an aqueous solution of heparin containing from 5 to 30 g of heparin/liter in the presence of 4-50 m.moles/l of cupric acetate and 50-300 m.moles/l of hydrogen peroxide, at a temperature of 40 DEG -50 DEG C., for 20-24 hours and keeping the pH at a value of 7.8 by means of sodium acetate. The obtained products show a high inhibiting property of the Xa factor, a high antithrombotic activity and a very modest anticoagulant activity; therefore they are very interesting for a possible utilization as drugs in the antithrombotic treatment, practically free from any risk of haemorrhages.