Oxovanadium Complexes of N-Substituted 3-Hydroxy-2-methyl-4(1H)-pyridinones: Synthesis, Spectroscopic Characterization, and the Insulin-mimetic Activity
摘要:
Five kinds of N-substituted 3-hydroxy-2-methyl-4(1H)-pyridinones, and two kinds of tetradentate ligands, N,N'-[bis(3-hydroxy-1,4-dihydro-2-methyl-4-oxo-1-pyridyl)hexanoyl- and -octanoyl]-1,5-diamino-3-oxapentanes, were synthesized. Treatment of these ligands with VO(acac)(2) in CH3OH exclusively gave CH3O-coordinated oxovanadium(V) complexes. On the other hand, treatment with VOSO4 in H2O at around pH 10 afforded oxovanadium(IV) complexes. On the basis of the inhibitory effect of oxovanadium(IV) complexes on free fatty acid (FFA) release from rat adipocytes treated with epinephrine in the presence of 0.1% glucose in vitro, it was revealed that some of oxovanadium(IV) complexes show the insulin-mimetic activity.
Compounds in which two or more rings, being a 3-hydroxpypyrid-2-one, 3-hydroypyrid-4-one or 1-hydropyrid-2-one, are linked are of value in the treatment of patients having a toxic concentration of a metal, particularly iron, in the body while the iron complexes of such compounds are of value in the treatment of iron deficien
Iron complexes of hydroxypyridones useful for treating iron overload
申请人:National Research Development Corporation
公开号:US05104865A1
公开(公告)日:1992-04-14
Compounds in which two or more rings, being a 3-hydroxpypyrid-2-one, 3-hydroxypyrid-4-one or 1-hydroxpyrid-2-one, are linked are of value in the treatment of patients having a toxic concentration of a metal, particularly iron, in the body while the iron complexes of such compounds are of value in the treatment of iron deficiency anaemia.
Hydroxypyridone derivatives and pharmaceutical compositions containing them
申请人:NATIONAL RESEARCH DEVELOPMENT CORPORATION
公开号:EP0138421A2
公开(公告)日:1985-04-24
Compounds in which two or more rings, being a 3-hydroxpy- pyrid-2-one, 3-hydroxypyrid-4-one or 1-hydroxpyrid-2-one, are linked are of value in the treatment of patients having a toxic concentration of a metal, particularly iron, in the body whilst the iron complexes of such compounds are of value in the treatment of iron deficiency anaemia.