Bianthrone is a natural product.

Isosilybin B is a flavonolignan extracted from silymarin that exhibits anti-prostate cancer (PCA) activity, inhibits cancer cell proliferation, and contributes to G1-phase blockade and apoptosis.Isosilybin B induces degradation of the androgen receptor.

AVE5688, an inhibitor of glycogen phosphorylase (GP), has IC50 values of 430 nM and 915 nM, and Kd values of 170 nM and 530 nM for rmGPb and rmGPa, respectively.