Patent ID: 8575218

Claim:
A method for ameliorating heavy metal toxicity in a mammal, comprising administering to the mammal a pharmaceutically effective amount of a compound having a chemical formula: where R 1 is selected from the group consisting of benzene, pyridine, pyridin-4-one, naphthalene, anthracene, and phenanthrene groups, R 2 is independently selected from the group consisting of hydrogen, alkyls, aryls, a carboxyl group, and carboxylate esters, R 3 is independently selected from the group consisting of benzene alkyls, aryls, a carboxyl group, and carboxylate esters, X is independently selected from the group consisting of benzene hydrogen, lithium, sodium, potassium, rubidium, cesium, francium, alkyls, aryls, a carboxyl group, carboxylate esters, cysteine, homocysteine, glutathione, lipoic acid, dihydrolipoic acid, thiophosphate, N-acetyl cysteine, mercaptoacetic acid, mercaptopropionic acid, γ-glutamyl cysteine, phytochelatins, and thiolsalicylate, n independently equals 1-10, m=2, 4, 5, or 6, Y is independently selected from the group consisting of hydrogen, polymers, silicas and silica supported substrates, and Z is selected from the group consisting of hydrogen, alkyls, aryls, a carboxyl group, carboxylate esters, a hydroxyl group, NH 2 , HSO 3 , halogens, a carbonyl group, polymers, silicas and silica supported substrates.