Quaternary ammonium salts were formed or the starting uracil was recovered after the reaction of 5-hydroxymethyl-6-methyluracil with toluenesulfonyl chloride or methanesulfonyl chloride and tertiary amines.
A multiresidue analytical method was developed for the simultaneous determination of benzylpenicillin (PCG), phenoxymethylpenicillin (PCV), oxacillin (MPIPC), cloxacillin (MCIPC), nafcillin (NFPC) and dicloxacillin (MDIPC) in bovine liver and kidney. The method involves the use of an ion-exchang...
In the present study polymeric microbeads of poly(2-hydroxyethyl methacrylate-co-dodecyl methacrylate-co-acrylic acid) or p(HEMA-co-dDMA-co-AA) were synthesised and characterized through FT-IR and scanning electron microscopy (SEM); their swelling behavior against saline solution was explored an...
The title compound, 1,2-dihydro-2,2,4-trimethylquinoline (TMQ), is a quinoline family member and is among others used to prevent the oxidative degradation of polymers. TMQ has been characterized by its fluorescence emission. In this work the effects of solvent, acidity, continuous irradiation an...
Two 1,2-dihydro-2,2,4-trimethylquinoline derivatives and two methyl 3,4,5-trimethoxybenzoate derivatives have been synthesized and their crystal structure determined by X-ray single crystal diffraction. Both methyl 3,4,5-trimethoxybenzoate derivatives: methyl 2,6-dibromo-3,4,5-trimethoxybenzoate...
Wafers with varying concentrations of diphenhydramine hydrochloride (DPH-HCl) as active pharmaceutical ingredient (API) were prepared and their near infrared (NIR) and Raman spectra recorded. The purpose of this study was to compare the suitability of these two vibrational spectroscopic techniqu...
This study focused on investigating and comparing between the effect of the strongly cationic exchange resin, Dowex 88 (Dow88), and the weakly cationic exchange resin, Amberlite IRP64 (Am64), on the physical properties of matrices and their drug release profiles. The matrices were prepared by di...
Intradermal (ID) capsaicin injection in humans induces spontaneous pain, flare, primary hyperalgesia, secondary hyperalgesia, and allodynia. Secondary hyperalgesia and allodynia are a reflection of central sensitization. The effect of treatment of single doses of (1) pregabalin, 300 mg single or...
2-Substituted derivatives of diphenylpyraline and their 1-phenyl and 1-phenethyl analogues have been prepared in several steps from dihydropyridine-2(1H)-thiones. The structures of all new compounds have been confirmed by NMR spectroscopy. Their activity against Mycobacterium tuberculosis H ...
Diphenylpyraline hydrochloride (DPP) is an internationally available antihistamine that produces therapeutic antiallergic effects by binding to histamine H 1 receptors. The complete neuropharmacological and behavioral profile of DPP, however, remains uncharacterized. Here we describe stu...
A validated, quantitative LC–APCI-MS/MS method for methadone, EDDP and EMDP in 200-μL plasma is presented. Specimen preparation was limited to protein precipitation and centrifugation. Chromatographic separation was achieved on a Synergi Hydro-RP 80A (50mm×2.0mm, 4μm) column with gradient el...
Background Adenosine is a potent endogenous anti-inflammatory and immunoregulatory molecule. Despite its promise, adenosine’s extremely short half-life in blood limits its clinical application. Here, we examined adenosine N1-oxide (ANO), which is found in royal jelly. ANO is an oxidized product...
In this paper a theoretical approach, based on Cobb-Douglas production function, is used to assess the difference between the GDP and GNP values in Poland. The results suggest that in the long run GDP in Poland will be about 9.5% higher than GNP implying that the actual income levels enjoyed by ...
This paper examines the relationship between the creative economy index (CEI) and GDP growth. The authors assume that as a result of feedback between institutions, human capital and technology, conditions for creativity development arise, which is the accelerator for innovations at micro-, mezo-...
A novel macrocyclic silver(I)-NHC complex was prepared by the quaternization reaction and anion metathesization reaction from 1-(1H-Imidazole-1-yl)methylene-1H-1,2,4-triazole as starting material. Its molecular structure was determined by single crystal X-ray diffraction and NMR spectroscopy, it...
From the reaction of tribenzo-S 2 O 2 macrocyclic ligand (L 1 ) and silver picrate (AgPic), a unique binuclear complex [Ag 2 (L 1 ) 2 (Pic) 2 ] (1) has been obtained. The species 1 has been characterised by single-crystal X-ray diffraction ...
Ion-pair formation constant (K A g P i c in mol - 1 dm 3 ) of silver picrate (AgPic), those (K A g L P i c ) of its ion-pair complexes (AgLPic) with crown ethers (L) and complex formation constants (K A g L )...
G-proteins mediate signal transfer from receptors to effector systems. In their guanosine 5 -triphosphate (GTP)-bound form, G-protein α-subunits activate effector systems. Termination of G-protein activation is achieved by the high-affinity GTPase [E.C. 3.6.1.-] of their α-subunits. Like G...
. Square-wave cathodic adsorptive stripping voltammetry based on adsorptive accumulation is a very sensitive technique for the trace determination of xanthosine 5′-monophosphate (5′-XMP) and xanthosine 5′-diphosphate (5′-XDP). The determination is based on the strong interaction of the adsor...
Several new N 1 -substituted uncommon purine nucleosides, including doridosine (1-methyl-isoguanosine; m-iG), 1-allyl-isoguanosine (a-iG) and 1-allyl-xanthosine (a-X), have been synthesized and tested as agonists for the adenosine receptors. Some have smooth muscle relaxant or negative c...
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