نتایج جستجو برای: هیدروکسی کینولین hydroxy quinoline
تعداد نتایج: 37532 فیلتر نتایج به سال:
A comparative Hansch type QSAR study was conducted using multiple regression analysis on various sets of quinoxalines, quinoxalin-4-ones, quinazoline-2-carboxylates, 4-hydroxyquinolin-2(1H)-ones, 2-carboxytetrahydroquinolines, phenyl-hydroxy-quinolones, nitroquinolones and 4-substituted-3-phenylquinolin-2(1H)-ones as selective glycine/NMDA site antagonists. Ten statistically validated equations...
Several bacterial cultures were isolated that are able to degrade quinoline and to transform or to degrade methylquinolines. The degradation of quinoline by strains of Pseudomonas aeruginosa QP and P. putida QP produced hydroxyquinolines, a transient pink compound, and other undetermined products. The quinoline-degrading strains of P. aeruginosa QP and P. putida QP hydroxylated a limited number...
abstract the cr(iii) and zn(ii) complexes with 2-((9,10-dihydro-1-hydroxy-9,10-dioxaanthracen-4-yloxy)carbonyl)benzoic acid as ligand have been prepared by reacting cr(no3) and zn(no3)2 and ligand in cloroform. the cr and zn complexes with 2-((9,10-dihydro-1-hydroxy-9,10-dioxaanthracen-4-yloxy)carbonyl) were also prepared in chloroform and aceton solutions. the uv-visible and ft-ir spectra of...
Neocryptolepine, which is a kind of tetracyclic indoloquinoline alkaloid, exhibits the inhibition of topoisomerase II and shows antiproliferative activity. The present study describes the synthesis and antiproliferative evaluation of several neocryptolepine analogues carrying a branched, functionalized dibasic side chain at C11. These 2-substituted 5-methyl-indolo[2,3-b]quinoline derivatives we...
Ž . Ž . We use inverse photoelectron spectroscopy IPES and ultraviolet photoelectron spectroscopy UPS to investigate Ž . unoccupied and occupied electronic states of five organic semiconductor materials: CuPc copper phthalocyanine , PTCDA Ž . Ž . Ž X X Ž . X 3,4,9,10-perylenetetracarboxylic dianhydride , a-6T a-sexithiophene , a-NPD N,N -diphenyl-N,N -bis l-naphthyl -l,l XX . Ž Ž . . biphenyl-4...
Occupied and unoccupied densities of states of p-conjugated molecules measured via ultraviolet photoemission spectroscopy and inverse photoemission spectroscopy, respectively, are compared with corresponding densities of states Ž . calculated using the semi-empirical Hartree–Fock intermediate neglect of differential overlap INDO method. Excellent Ž . agreement is obtained for both occupied and ...
As a disease-modifying approach for Alzheimer's disease (AD), clioquinol (CQ) targets beta-amyloid (Abeta) reactions with synaptic Zn and Cu yet promotes metal uptake. Here we characterize the second-generation 8-hydroxy quinoline analog PBT2, which also targets metal-induced aggregation of Abeta, but is more effective as a Zn/Cu ionophore and has greater blood-brain barrier permeability. Given...
Results are presented from polymer/molecular organic heterostructure light emitting diodes composed of a layer of the conjugated conducting polymer poly~p-phenylene vinylene! ~PPV!, and a layer of fluorescent molecular compound tris~8-hydroxy! quinoline aluminum ~Alq!. The external quantum efficiency of these heterostructure LEDs is ;0.1%, which is over one order of magnitude higher than that o...
Novel series of quinoline derivatives incorporating cyclopropyl ring and sulfone linkage as substituents have been synthesized, oxidation ethyl-2-cyclopropyl-4-(substituted phenylthio)quinoline-3-carboxylate was carried out to set phenyl sulfonyl)quinoline-3-carboxylate. An ecofriendly synthesis by the reaction glacial acetic acid 30% hydrogen peroxide at room temperature. The synthesized evalu...
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