Low molecular weight glycosaminoglycan derivative containing 2,5-terminus dehydration talose or a derivative thereof

Monosaccharides low molecular weight component containing a fucosylated 2,5 dehydrated talose, its substituted sugar alcohols, glycosaminoglycans or glycosaminoglycan N (aTFG), their preparation, containing the aTFG pharmaceutical compositions and / or applications in the prevention and treatment of thrombotic diseases. The aTFG has potent anticoagulant activity, which acts on the endogenous blood coagulation factor X enzymes, inhibition of thrombosis, thus useful for the prevention and / or treatment of cardiovascular and cerebrovascular diseases medicament.