Euchrestaflavanone A is a flavonoid found in the root bark of Cudrania tricuspidate. Euchrestaflavanone A inhibits platelet aggregation and has some antiplatelet and antithrombotic properties, making it a potential compound for thromboprophylaxis.

H-Gly-Pro-Arg-Pro-NH2 is a peptide that mimics the N-terminal Gly-Pro-Arg region in the a chain of fibrin protein. H-Gly-Pro-Arg-Pro-NH2 prevents fibrin polymerization.

D-proline is an isomer of the naturally occurring amino acid L-Proline. D-amino acids have been found in relatively high abundance in human plasma and saliva. These amino acids may be of bacterial origin but there is also evidence that they are endogenously produced through amino acid racemase activity.