Patent ID: 8198322

Claim:
A pharmaceutical composition comprising wherein Z is selected from a group comprising —(CH 2 ) 2 , —(CH 2 ) 3 , —(CH 2 ) 4 , phenyl, naphthyl and benzoic acid, M is a metal selected from a group comprising Mn, Mn(II), Mn(III), Fe, Fe(II), Fe(III), Cu, Ni, Hg, Pt, Sc, Ti, V, Cr, Co, Zn, Y, Zr, Nb, Mo, Tc, Ru, Rh, Pd, Ag, Cd, Lu, Hf, Ta, W, Re, Os, Ir, Pt, and Au, R 3 and R 3 ′ are hydroxyl groups, R 4 , R 4 ′, R 5 , R 5 ′, R 6 and R 6 ′ are hydrogens, and wherein the composition is effective to treat a cancer, selected from a lymphoma, a blastoma, a tumor, a melanoma, ovarian cancer, breast cancer, non-small cell lung cancer, small cell lung cancer, renal cancer, colorectal cancer, pancreatic cancer, gastric cancer, bladder cancer, uterine cancer, lymphoma, and prostate cancer.