COMPOUNDS WITH CHELATION AFFINITY AND SELECTIVITY FOR FIRST TRANSITION SERIES ELEMENTS AND THEIR USE IN COSMETICS AND PERSONAL CARE PRODUCTS, INHIBITION OF METALLOENZYMES, AND INHIBITION OF REPERFUSION INJURY
Complexes of cyclic polyaza chelators with cations of alkaline earth metals for enhanced biological activity
申请人:Winchell S. Harry
公开号:US20050112066A1
公开(公告)日:2005-05-26
Cyclic polyaza chelators that possess high affinity and specificity for first transition series metal cations exhibit an unanticipated improvement in biological activity when administered as complexes with cations of the alkaline earth metals, Ca(II) and Mg(II), most notably Ca(II). By virtue of this improvement, these complexes are particularly effective in the treatment of pathological conditions, including ischemia and ischemia-reperfusion injury.
Neuroprotection and cardioprotection afforded by chelators with high affinity and specificity for cations of first transition series elements
申请人:CONCAT, LTD. a California Limited Partnership
公开号:US20040006055A1
公开(公告)日:2004-01-08
Compounds that demonstrate chelation affinity and selectivity for first transition series elements are administered to patients suffering from such conditions as ischemia, prolonged seizures and trauma to provide neuroprotection, cardioprotection, or both. These compounds when administered form complexes with chelatable iron and copper cations and thereby mitigate the ability of these cations to catalyze Haber-Weiss reactions that form toxic hydroxy free radicals that cause tissue injury. These compounds also form complexes with chelatable zinc cations thereby inhibiting the cytotoxicity associated with excess chelatable zinc.
Compounds with chelation affinity and selectivity for first transition series elements and their use in cosmetics and personal care products, inhibition of metalloenzymes, and inhibition of reperfusion injury
申请人:——
公开号:US20010041170A1
公开(公告)日:2001-11-15
This invention involves the use of a class of compounds with chelation affinity and selectivity for first transition series elements. Application or administration of the free or conjugated compound, or physiological salts of the free or conjugated compound, results in decrease of the bioavailability and/or chemical action of first transition series elements. These characteristics make such compounds useful in cosmetics and personal care products to decrease odor arising from microbial growth on body surfaces and in body cavities, decrease microbial growth on teeth, plaque, and gums that cause tooth decay and gum disease, inhibition of oxidative damage to the skin, inhibition of enzymatic action of metalloenzymes dependent on first transition series elements, and inhibition of reperfusion injury.
Molecular Architectures for Trimetallic d/f/d Complexes: Structural and Magnetic Properties of a LnNi<sub>2</sub> Core
作者:Cheri A. Barta、Simon R. Bayly、Paul W. Read、Brian O. Patrick、Robert C. Thompson、Chris Orvig
DOI:10.1021/ic701612e
日期:2008.4.1
[GdZn2(bcn)2(CH3CN)2]ClO4.CH3CN were determined to be nearly identical with each TM(II) encapsulated in an octahedral geometry by the N3O3 binding pocket of the bcn (3-) ligand. The eight coordinate Gd(III) was bicapped by two [TM(bcn)](-) moieties and coordinated by two solvent molecules. Because of the isostructurality of the [LnZn2(bcn)2]ClO4.nH2O and [LnNi2(bcn)2]ClO4.nH2O complexes, an empirical approach
制备了一系列阳离子,三金属d / f / d络合物,它们使用多齿大环胺酚配体来协调二价第一行d嵌段过渡金属离子(TM)和镧系元素(Ln)离子的紧密结合。磁性研究。具有式[LnTM2(bcn)2] ClO4.nH2O的d / f / d簇化合物的可分离配合物,其中H3bcn是tris-N,N',N''-(2-羟基苄基)-1合成4,4,7-三氮杂环壬烷,TM = Zn(II)和Ni(II),Ln = La(III),Nd(III),Gd(III),Dy(III)和Yb(III)一锅化学计量的H 3bcn与TM(II)和Ln(III)金属离子的顺序反应。通过各种分析技术(包括IR,NMR,+ ESI-MS和EA)对自发形成的阳离子络合物进行表征。[TM(Hbcn)]。nH2O和[TM3(bcn)2]。还合成了nH2O配合物以探测d / f / d共聚物种的组成部分。确定[GdNi2(bcn)2(CH3CN)2]
Molecular Architectures for Trimetallic d/f/d Complexes: Magnetic Studies of a LnCu<sub>2</sub> Core
作者:Cheri A. Barta、Simon R. Bayly、Paul W. Read、Brian O. Patrick、Robert C. Thompson、Chris Orvig
DOI:10.1021/ic701613x
日期:2008.4.1
[LnZn2(bcn)2]ClO4.nH2O was used to study the d/f/d spin interactions in the [LnCu2(bcn)2]ClO4.nH2O complexes. A ferromagnetic exchange was determined where Ln = Gd(III), Dy(III), or Yb(III) and an antiferromagnetic exchange for Ln = Nd(III), identical to the magnetic exchange observed for the [LnNi2(bcn)2]ClO4.nH2O complexes. An exchange integral of 3.67 cm(-1) for the trimetallic [GdCu2(bcn)2]ClO4.3H2O