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Stability-indicative detn. of bambuterol hydrochloride (BH) in the presence of its degrdn. product (terbutaline), which is also the metabolite, is investigated. The degrdn. product was isolated, via acid-degrdn., characterized and elucidated. Selective quantification of BH, singly in bulk form, phar...
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Order of proceedings for the installation ceremony and a biographical sketch of Dr. Abd-El-Aziz.
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The present study demonstrates the benefits of combinatorial antioxidant therapy in the treatment of ischemic stroke. Male Sprague-Dawley rats were anaesthetised and the middle cerebral artery (MCA) was occluded for 30 minutes followed by 5.5 hours of reperfusion. Pretreatment with resveratrol 30 mi...
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Edaravone, an electron spin trapper with radical scavenging activity, has been shown to be effective in reducing infarct volume in humans following ischemic stroke. However, concerns of edaravone-induced renal toxicity have limited its clinical adoption. Previous work has demonstrated that edaravone...
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Cyclic aryl ethers, thioethers or amines, and methods for synthesis are disclosed. These cyclic aryl compounds are synthesized by combining a first dinucleophile with a substituted benzene metallized electron-withdrawing complex, having halo or nitro substituent groups, to form a linear bimetallized...
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A novel series of functionalized thiophenes incorporating coumarin, pyrene and naphthalene pendants were synthesized by Steglich esterification in the presence of DCC/DMAP (dicyclohexylcarbodiimide/N,N-dimethylaminopyridine) and the synthesized monomers were electrochemically deposited onto glassy c...
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Cyclic aryl ethers, thioethers or amines, and methods for synthesis are
disclosed. These cyclic aryl compounds are synthesized by combining a first
dinucleophile with a substituted benzene metallized electron-withdrawing
complex,
having halo or nitro substituent groups, to form a li...
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The reaction of dichloro-terminated organoiron complex [Fe(1,4-C6H4Cl2)Cp]+PF6- (3) with 4-hydroxybenzoic acid resulted in the formation of dicarboxylic acid organoiron complex 4. 4′-Hexyl alcohol-2,2′:6′,2″-terpyridine (hextpy) 2 was reacted with dicarboxylic acid organoiron complex 4 or th...
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In this investigation, the hydration characteristics and microstructure of calcium aluminate cement (CAC) contg. different proportions of high slag (HSC) and sulfate resisting cements (SRC) were studied. The blends were made from CAC with the partial replacement of HSC or SRC of 5, 10, 15, 20 and 25...
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A review on the prepn. and uses of organometallic polymers having metal-carbon bonds in the main or side chains or heteroatom-metal bonds in the main chain.
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The living ring-opening metathesis polymns. of deltacyclene (I) and 5-(tert-butyldimethylsiloxy)deltacyclene (II) in presence of the Schrock catalyst Mo(=CHCMe2Ph)[=N-2,6-(iso-Pr)2Ph](O-tert-Bu)2 were described. II was prepd. by first epoxidizing I, then treating this epoxide with a Lewis acid in pr...
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Organoiron polynorbornene containing arylazo or hetarylazo dye chromophores has been prepared via ring opening metathesis polymerization using Grubbs' catalyst. The obtained polymers were isolated as brightly colored materials and displayed good solubility in polar organic solvents. The colors of th...
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As functionalization of the polynorbornene backbone has shown to be a viable route towards altering the thermal and chem. properties of the resulting polymeric material, our focus was on the prepn. of norbornene monomers contg. a side-chain consisting of a rigid mesogen and/or an aliph. spacer. Ring...
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Novel polynorbornenes containing cationic cyclopentadienyliron moieties pendent to the polymer side chains were prepared via polymerization of metallated norbornene monomers using Grubbs' catalyst. Thermogravimetric analysis of the organometallic polymers showed two weight loss steps: the first at 2...
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A review presents all classes of macromols. contg. iron-carbon bonds and highlights some examples of these materials. Ferrocene-based polymer, polymers contg. cyclopentadienyliron complexed arenes or iron carbonyl complexes, iron polyynes, and polymer with Fe-Fe bond are discussed. The methods utili...
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A number of red to violet thienyl-2-azo and thienyl-5-azo disperse dyes were prepared using Gewald's methodology. Structural characterization of these novel dyes was carried out using IR, NMR and mass spectroscopy. UV–visible studies of these azo dyes in a number of polar solvents showed a conside...