| 摘要 |
Polysaccharides consisting of chains or mixtures of chains having a molecular weight ranging from about 1000 to about 100000 Da, or more, said polysaccharides being characterized in that they have a repeating disaccharide structure of formula (I) wherein A, B, R, R1, R2, R3 and R4 are as defined in the disclosure, and the salts thereof with alkali or alkaline-earth metal cations, have remarkable anticoagulant and antithrombotic activities. |
