βlapachone

β-Lapachone (ARQ-501) is a specific DNA topoisomerase I inhibitor, and no inhibitory activities against DNA topoisomerase II or ligase.

α-Lapachone has antineoplastic activity, it shows an approximately trypanocidal activity against Trypanosoma cruzi.

4,9-Dihydroxy-alpha-lapachone has antitumor-promoting effects, it exhibits significant inhibitory activity against 12-O-tetradecanoylphorbol 13-acetate (TPA)-induced Epstein-Barr virus early antigen (EBV-EA) activation in Raji cells. 4,9-Dihydroxy-alpha-l

9-Methoxy-alpha-lapachone has antitumor-promoting effect, it exhibits significant inhibitory activity against 12-O-tetradecanoylphorbol 13-acetate (TPA)-induced Epstein- Barr virus early antigen (EBV-EA) activation in Raji cells.

9-Hydroxy-alpha-lapachone can highly inhibit the growth of H. pylori, it exhibits potent inhibitory activity against H. pylori Cystathionine gamma-synthase, with IC(50) values of 4.64 microM. It may have anti-inflammatory activity, it exhibits potent inhi