We evaluated the clinical improvement of patients with mild to moderate persistent allergic rhinitis (AR) due to mono-sensitization to house dust mite (HDM) allergen, by sodium cromoglycate nasal spray (Lomusol 4%). Lomusol was used as a single agent treatment, and its anti-inflammatory effects,...
As requested by regulatory authorities, impurity profiling is an important issue of quality control. In this work, a simple and sensitive liquid chromatographic (LC) method compatible with mass spectrometry (MS) was developed to study related substances and degradation products in sodium cromogl...
Several studies indicate that sodium cromoglycate (CG) induces neuroprotective effects in acute neurological conditions. The present study focused on investigating if the use of CG in rats during the post-status epilepticus (post-SE) period reduces the acute and long-term consequences of seizure...
Isotactic rich polystyrene was synthesized at 30 °C by the t-BuLi initiated polymerization in the presence of sodium dodecylbenzenesulfonate (SDBS) in hexane or cyclohexane. The polymerization rates at 30 °C were very fast and typically gave quantitative conversions. At SDBS/t-BuLi molar ratio...
The article deals with spectroscopic characterization of azetidin-2-ones. The presence of substituents like hydroxyl, fluoro, methoxy and benzhydryl, etc., on the azetidin-2-one ring significantly affects the IR absorption and 13C NMR frequencies of the carbonyl group present in these compounds....
Certain Group IVB derivatives of 1,6-methano[10]annulene have been synthesised, and their 13C nuclear magnetic resonance spectra recorded and assigned, to provide a measure of the substituent effects exerted by metalloid-containing groups in this non-benzenoid aromatic system. Comparisons are ma...
2,10-Diferrocenyl- and 2,5,7,10-tetraferrocenyl-1,6-methano[10]annulenes, in which the ferrocene nuclei are held proximate and cofacial, have been synthesized by using the palladium-catalyzed cross-coupling reaction of ferrocenylzinc chloride with 2,10-dibromo- and 2,5,7,10-tetrabromo-1,6-methan...
The selective liquid-phase hydrogenation of d-fructose was studied on Cu-based catalyst, using an ethanol-water (70:30) mixture as solvent. The catalysts were prepared by three different methods: incipient wetness impregnation (Cu/SiO2-I and Cu/Al2O3-I), precipitation–deposition (Cu/SiO2-PD) an...
Synthesis of strained macrocyclic biaryl ethers of type 1 and 2 were accomplished using η6-ruthenium-induced macroetherification. This novel application demonstrates the versatility of this method in construction of constrained macrocyclic biaryl ether ring systems.
In recent years, various exogenous nitric oxide (NO) donors have been synthesized to modulate NO concentrations in cellular environments and control physiological processes that are regulated by NO. Transition metal complexes of NO (metal nitrosyls) are one such class of NO donors. Since complex...
Recently, remarkable biological functions have been attributed to nitric oxide (NO) as responsible to mediate neuronal communication, blood vessel modulation, and immune response. The amount of NO seems to be involved in the regulation of cell function and communication suggests that NO precurso...
1,3,4,6-Tetra-O-acetyl-2-deoxy-2-isothiocyanato-α- or -β-d-glucopyranose (4 or 5) was condensed with 2-chloroethylamine hydrochloride in pyridine to afford N,N′-bis(1,3,4,6-tetra-O-acetyl-2-deoxy-α- or -β-d-glucopyranos-2-yl)-N-(2-thiazolin-2-yl)thiourea (2 or 3). When the reactions were ca...
The influence of the counterions on the geometry of Cu(I) and Cu(II) unsubstituted phen-based (phen = 1,10-phenanthroline) complexes was investigated. The synthetic strategy used afforded the synthesis of both the tetracoordinated Cu(I) and pentacoordinated Cu(II) species with general formula [(...
A novel tetracopper(II) complex namely, [Cu4(H2O)2(phen)4(μ-P2O6CH2)2]·21H2O (1) was synthesized by using copper(II) chloride, 1,10-phenanthroline (phen), and methylene diphosphonic acid (MDP). The structure of 1 was characterized by single crystal X-ray diffraction and spectroscopy. Compound ...
Nine new copper(I) complexes bearing 1,3-bis(diphenylphosphino)propane (dppp) and 4,7-diphenyl-1,10-phenanthroline (batho) or 2,9-dimethyl-1,10-phenanthroline (neo) have been synthesized and characterized. Single crystal X-ray diffraction analysis reveals that complexes 1–4 and 6–9 are mononuc...
A dispersive micro solid phase extraction (DMSPE) method for the selective preconcentration of trace lead ions on oxidized multiwalled carbon nanotubes (ox-MWCNTs) with complexing reagent 1,10-phenanthroline is presented. Flame and electrothermal atomic absorption spectrometry (F-AAS, ET-AAS) we...
The dinuclear complex bis[(μ2-chloro)chloro(1,10-phenanthroline)copper(II)] (1) was synthesized, and characterized by X-ray, FTIR and thermal analysis. The fitting of magnetic susceptibility and magnetization curve of (1) indicates the occurrence of weak antiferromagnetic exchange interaction b...
3,8-Bis(4-methoxyphenyl)-1,10-phenanthroline (L) has been found to show high sensitivity toward Zn2 + than other competitive metal ions, where Zn2 +-selective chelation-enhanced fluorescence response at 461 nm is attributed to the formation of a 1:1 metal–ligand complex. In addition, two single...
Ternary copper(II) complexes with 1,10‑phenanthroline and the aminoacids l‑arginine, l‑aspartic acid, l‑histidine, l‑glutamic acid, l‑glutamine, l‑leucine, l‑lysine, l‑methionine, l‑phenylalanine, l‑tryptophan, l‑tyrosine, l‑valine, were studied in aqueous solution by means of UV–Vis-NIR spectr...
Reaction of 2-(2-pyridyl)imidazo[4,5-f][1,10]-phenanthroline (pipH), [Cu(MeCN)4]ClO4 and diphosphine ligand bis[(2-diphenylphosphino)phenyl] ether (POP) or 9,9-dimethyl-4,5-bis(diphenylphosphino)-9H-xanthene (xantphos) in a 1:2:2 ratio generated four binuclear copper(I) complexes, [Cu2(pipH)(PP)...
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