Chromones and chromone derivatives and uses thereof
Certain 2- and/or 3-substituted 5,6,7 substituted chromones are of use in treatment of treating diseases associated with overproduction of TNF-α, diseases associated with overproduction of superoxide anion radical And the treatment of organ damage. Some of the compounds are novel.
1. A compound according to formula I:
wherein:
R 1 and R 3 are each independently H, —SO 3 H, or —PO 3 H 2 ;
R 2 is selected from, —SO 3 H or —PO 3 H; and
X 1 is bound in the 2- or 3-position and is of the formula:
Ar—X 3 wherein—
Ar is phenyl and X 3 is selected from the group consisting of NR′R″, NHR′, hydroxyl. Alkoxy, carbooxyalkoxyalkoxy, hydroxyl(hydroxyalkyl)alkoxy and N,N-dialkylaminoalkoxy, wherein R′ and R′ are each independently selected from hydrogen, alkyl, N,N-(dialkylamino)alkyl, alkoxyalkyl, hydroxyalkyl, alkylsulfonyl and alkylsulfonato alkyl or pharmaceutically acceptable salts thereof.
2. The compound according to claim 1 , wherein R 1 , R 2 and R 3 are each independently SO 3 H or PO 3 H 2 .
3. The compound wherein the compound is 4′-(N,N-dimethylamino)-5,6,7-trimethoxyflavone, 4′-(methylamino)-5,6,7-trimethoxyflavone, 4′-[N-methyl-N-(3-methoxypropyl)amino)-5,6,7-trimethoxyflavone, 4′-[N,N-di-(2-hydroxyethyl)-amino)-5,7-dihydroxy-6-methoxyflavone, 4′-(2-hydroxyethylamino)-5,7-dihydroxy-6-methoxyflavone, 4′-(2-methanesulfonatoethylamino)-5,7-dihydroxy-6-methoxyflavone, 4′42-(N,N-diethylamino)ethylamino]-5,7-dihydroxy-6-methoxyflavone, 2,3-diphenyl-5,6,7-trimethoxychromone, 2,3-diphenyl-5,6,7-trihydroxychromone, 4′-(methylsulfonamido)-5,6,7-trimethoxyflavone, 4′42-(N,N-diethylamino)ethoxy]-6,7-methylenedioxy-5-hydroxy-flavone, 4′-(2,3-dihydroxy-propyloxy)-5,6,7-trimethoxyflavone, or 4′-(Carbmethoxymethoxy)-5,6,7-trimethoxyflavone.
4. A pharmaceutical formulation comprising a compound according to claim 1 and at least one pharmaceutically acceptable carrier, diluent, or excipient.
5. A method of improving conditions in or delaying progression of a condition associated with overproduction of TNF-α selected from the group consisting of rheumatoid arthritis, Crohn's disease, and ulcerative colitis, comprising administering to a subject in need thereof an effective amount of a compound according to claim 1 .
6. A method of improving conditions in or delaying progression of a condition liver damage, lung damage or kidney damage or combinations thereof resulting from over production of TNF-α or superoxide anion radicals comprising administering to a subject in need thereof an effective amount of a compound according to claim 1 .
7. A method of improving conditions in or delaying progression of a condition conditions selected from the group consisting of diseases associated with the overproduction of TNF-α and combinations thereof, comprising administering to a subject in need thereof, a pharmaceutical composition comprising a therapeutically effective amount of a compound selected from the group consisting of baicalein-6-sulfate, baicalein-6,7-disulfate, bacalein-6-phosphate, bacalein-6,7-diphosphate, baicalein-5,6,7-triphosphate, sodium and potassium salt derivatives thereof, and pharmaceutically acceptable salts thereof.
8. The method according to claim 7 , wherein the pharmaceutical composition is administered in combination with at least one other therapeutic agent useful for the treatment of conditions associated with overproduction of TNF-α.
9. A method of improving conditions in or delaying progression of a condition selected from the group consisting of diseases associated with the overproduction of TNF-α, and combinations thereof, comprising administering to a subject in need thereof, a pharmaceutical composition comprising a therapeutically effective amount of compound as in claim 3 .
10. A pharmaceutical formulation comprising a compound according to claim 3 and at least one pharmaceutically acceptable carrier, diluent, or excipient.