A new iron(III) complex of glycine derivative of amine-chloro substituted phenol ligand: Synthesis, characterization and catechol dioxygenase activity
作者:Iraj Saberikia、Elham Safaei、Mohammad Hossein Kowsari、Yong-Ill Lee、Patricia Cotic、Giuseppe Bruno、Hadi Amiri Rudbari
DOI:10.1016/j.molstruc.2012.06.047
日期:2012.12
Abstract A new iron(III) complex of the glycine derivative of amine-chloro substituted phenol ligand (H 3 L GDC ) has been prepared and characterized by IR, 1 H NMR, UV–Vis spectroscopic techniques, cyclic voltammetry, ESI-MS and magnetic susceptibility studies. X-ray analysis reveals that in iron complex of FeL GDC the iron(III) center has a distorted trigonal bipyramidal coordination sphere and is
摘要 制备了一种新的胺-氯取代苯酚配体甘氨酸衍生物铁 (III) 配合物 (H 3 L GDC ) 并通过 IR、1 H NMR、UV-Vis 光谱技术、循环伏安法、ESI-MS 和磁化率研究。X 射线分析表明,在 FeL GDC 的铁络合物中,铁 (III) 中心具有扭曲的三角双锥配位球,并被胺氮、羧酸盐、水和两个酚盐氧原子包围。使用 UB3LYP/6-311++G ** 级优化结构的复合物的 DFT 计算与实验 X 射线结构数据非常吻合。变温磁化率表明 FeL GDC 是顺磁性高自旋铁 (III) 配合物。已经表明,由于酚盐氧化为苯氧基自由基,该复合物的电化学氧化以配体为中心。这种酶模拟物利用分子氧进行儿茶酚的氧化裂解,并在室温下完全转化。
The alkaline peroxide oxidation of 1′,2′-dihydroxy-3,4-benzotropolones
作者:P. D. Collier
DOI:10.1039/j39690000612
日期:——
The alkaline peroxide oxidation of 1′,2′-dihydroxy-3,4-benzotropolones proceeds via the corresponding 1′,2′-quinoneanions, which undergo two types of peroxide decomposition. (a) At low temperature and alkali concentration, peroxide attack on the 3′- and 4′-positions of the cyclohexadiene ring predominates, and results in the formation of unstable hydroperoxides which decompose to hydroxyquinones,
Tricyclic retinoids, methods for their production and use
申请人:LIGAND PHARMACEUTICALS INCORPORATED
公开号:EP0933350A1
公开(公告)日:1999-08-04
Tricyclic retinoids having activity for retinoic acid receptors and/or retinoid X receptors are provided. Also provided are pharmaceutical compositions incorporating such tricyclic retinoid compounds and methods for their therapeutic use.
本研究提供了对维甲酸受体和/或维甲酸 X 受体具有活性的三环类维甲酸。此外,还提供了含有此类三环类维甲酸化合物的药物组合物及其治疗方法。
Probe compound for detecting and isolating enzymes and means and methods using the same
申请人:Helmholtz-Zentrum für Infektionsforschung GmbH
公开号:EP2230312A1
公开(公告)日:2010-09-22
The present invention relates to a probe compound that can comprise any substrate or metabolite of an enzymatic reaction in addition to an indicator component, such as, for example, a fluorescence dye, or the like. Moreover, the present invention relates to means for detecting enzymes in form of an array, which comprises any number of probe compounds of the invention which each comprise a different metabolite of interconnected metabolites representing the central pathways in all forms of life. Moreover, the present invention relates to a method for detecting enzymes involving the application of cell extracts or the like to the array of the invention which leads to reproducible enzymatic reactions with the substrates. These specific enzymatic reactions trigger the indicator (e.g. a fluorescence signal) and bind the enzymes to the respective cognate substrates. Moreover, the invention relates to means for isolating enzymes in form of nanoparticles coated with the probe compound of the invention. The immobilisation of the cognate substrates or metabolites on the surface of nanoparticles by means of the probe compounds allows capturing and isolating the respective enzyme, e.g. for subsequent sequencing.
Conversion of dicarboxylic acids to monomers and plasticizers
申请人:Alliance for Sustainable Energy, LLC
公开号:US10793506B2
公开(公告)日:2020-10-06
The present disclosure relates to a composition that includes a first repeat unit defined by
where R includes a first hydrocarbon chain that includes at least one olefinic bond, R5 includes a second hydrocarbon chain, the second hydrocarbon chain may be saturated, and n may be between 2 and 1,000.