| abstract |
There is proposed a chemical compound of 5,11,17,23-tetrakis[bis(dihydroxyphosphoryl)methyl]calix[4]arene and a sodium salt thereof, which can be used as antithrombotic agents. A highly specific inhibiting effect of the aforementioned calixarenes on the fibrin polymerization has been identified. It has been found that the addition of the aforementioned calixarenes to blood plasma leads to an increase of the prothrombin time and the activated partial thromboplastin time. |