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出 处:《应用化学》2005年第10期1060-1064,共5页Chinese Journal of Applied Chemistry
基 金:国家自然科学基金(20171019)资助项目
摘 要:在乙醇中以乙酸稀土或在无水乙醇中以无水氯化钕与二甲双胍(以DMBG表示)反应,合成了二甲双胍乙酸钕、钐和二甲双胍氯化钕3种固态配合物。元素分析、ICP、IR、UV、荧光光谱等测试技术研究表明,配合物的化学组成分别为Re(DMBG)2(CH3COO)3(Re=Nd(Ⅲ),Sm(Ⅲ)离子,CH3COO-为乙酸根)和Nd(DMBG)2(EtO)C l2(EtO为乙氧基阴离子)。通过糖尿病小鼠模型观察了它们的降血糖作用,通过ESR谱测定了对人工脂质体膜超氧自由基的清除率。实验结果表明,二甲双胍乙酸钕[Nd(DMBG)2(CH3COO)3]的降血糖作用和对超氧离子自由基的清除率均高于盐酸二甲双胍(M etform in,D im ethylb iguam ide hydrochloride简称DMBG.HC l),表明其降血糖作用与其抗氧化作用或对细胞膜的保护作用具有相关性。Four new complexes were synthesized via reaction of dimethylbiguamide (DMBG) with anhydrous Rare Earth chloride in anhydrous ethanol or Rare Earth acetate in ethanol, and characterized by elemental analysis, ICP, UV, IR, and fluorescence spectroscopy. The formulae of the complexes were established as Nd (DMBG) 2 (EtO) Cl2 ( EtO = ethoxy) and Re (DMBG)2(CH3COO)3 (Re = Nd(Ⅲ), Sm ( Ⅲ) ). Their antidiabetes action on the diabetes mice was observed, and the elimination rates of supraoxide anion free radical on lipid were determinated by ESR. The result shows that Nd(DMBG)2(CH3COO)3 complex exhibits a strong effect in both cases, which implies that its anti-diabetes action may be related to anti-oxidation action or protection effect to membrane damnication.
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