University of Florida Research Foundation, Incorporated

Other

National Institutes of Health, a Component of the US Dept. of Health & Human Services

The United States of America As Represented by the National Institutes of Health (nih)

Sunpharm Corporation

Raymond J Bergeron, Jr

Charles A Sninsky

Stefan Borg

Macular degeneration, closed head injury, stroke, irritable bowel disease, and reperfusion injury are all associated with biological injury due to reactive oxygen species, probably due to focal iron overload in many instances. The present invention provides methods and pharmaceutical compositions for treating these diseases and conditions using desferrithiocin analogs of Formula (I). In certain embodiments, the analogs include a poly ether moiety at the 4′-position of the phenyl ring of the compound.

Uses of 4′-desferrithiocin analogs

The present invention provides compounds of Formula (I), which are 'metabolically programmed' metal chelators, e.g., lipophilic, absorbable (e.g., orally absorbable), and effective metal chelators that are converted in vivo to their hydrophilic, nontoxic metabolites. The present invention also provides compounds of Formula (II), which are also 'metabolically programmed' metal chelators. The invention also provides pharmaceutical compositions, kits, methods, and uses that include a compound described herein. The compounds, pharmaceutical compositions, kits, and methods may be useful in treating or preventing a disease (e.g., metal overload, oxidative stress, diabetes, liver disease, heart disease, cancer, radiation injury, neurological or neurodegenerative disorder, Friedreich's ataxia (FRDA), macular degeneration, closed head injury, irritable bowel disease, reperfusion injury, metal poisoning, or infectious disease).

Metabolically programmed metal chelators and uses thereof

Iron overload is associated with pathological conditions such as oxidative stress, transfusional iron overload, thalassemia, primary hemochromatosis, secondary hemochromatosis, diabetes, liver disease, heart disease, cancer, radiation injury, neurological or neurodegenerative disorder, Friedreich's ataxia (FRDA), macular degeneration, closed head injury, irritable bowel disease, and reperfusion injury. The present invention provides methods and pharmaceutical compositions using desferrithiocin analogs of Formulae (A) and (J) for treating and/or preventing these pathological conditions, metal (e.g., iron, aluminum, a lanthanide, or an actinide (e.g., uranium)) overload conditions, and infectious diseases (e.g., malaria).

Desferrithiocin analogs and uses thereof

Compounds represented by structural formulas described herein, such as Structural Formula (I): or a pharmaceutically acceptable salt thereof are useful in treating conditions such as metal overload, oxidative stress, and neoplastic and preneoplastic conditions.

Desferrithiocin polyether analogues

A relatively non-toxic desazadesferrithiocin analog having the formula: 

An immunogenic composition comprising a siderophore covalently linked to a pharmaceutically acceptable carrier molecule wherein the antigenicity of the siderophore moiety is sufficient to stimulate an immunologic response to the siderophore when the composition is circulating in the bloodstream of a human or non-human animal and vaccine.

Siderophore conjugate immunogenic compositions and vaccines

Compounds represented by structural formulas such as Structural Formula (I): are highly efficient in clearing excess iron from an organism. The invention also discloses methods of treating conditions such as metal overload, oxidative stress, and neoplastic and preneoplastic conditions.

Desferrithiocin derivatives and methods of use thereof

A relatively non-toxic desazadesferrithiocin analog having the formula (I): wherein: R, R, Rand Rmay be the same or different and may be H, straight or branched chain alkyl having up to 14 carbon atoms, e.g., methyl, ethyl, propyl and butyl, or arylalkyl wherein the aryl portion is hydrocarbyl and the alkyl portion is straight or branched chain, the arylalkyl group having up to 14 carbon atoms, R2 optionally being alkoxy having up to 14 carbon atoms; Ris [(CH)&#x2014;O]&#x2014;[(CH)&#x2014;O]-alkyl; n is, independently, an integer from 1 to 8; x is an integer from 1 to 8; y is an integer from O to 8, and RO may occupy any position on the phenyl ring except the 4-position, or a salt, hydrate or solvate thereof; and methods and compositions for treating the effects of trivalent metal, i.e., iron, overload.

The present invention relates to novel thiazoline acids and derivatives thereof useful as chelators of trivalent metals in therapeutic applications. For example, the thiazoline acid derivatives are useful in diagnosing and treating pathological conditions associated with an excess of trivalent metals in humans and animals.

Growing community of inventors

Gainesville, FL, United States of America

Raymond J Bergeron, Jr