Corylifol A displays cytotoxic activity against HepG2 and Hep3B hepatocellular carcinoma cell lines, with IC50 values of 4.6 and 13.5 ug/ml, respectively.

(E)-[6]-Dehydroparadol shows growth inhibition and induction of apoptosis against human cancer cells(IC50 values of 43.02 μM in HCT-116 cell and 41.59 μM in H-1299 cell, respectively).

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.