- Carbonic anhydrase inhibitors: copper(II) complexes of polyamino-polycarboxylamido aromatic/heterocyclic sulfonamides are very potent inhibitors of the tumor-associated isoforms IX and XII. Rami, M., Winum, J.Y., Innocenti, A., Montero, J.L., Scozzafava, A., Supuran, C.T. Bioorg. Med. Chem. Lett. (2008)