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The Synthesis, Crystal Structure, Modification, and Cytotoxic Activity of α-Hydroxy-Alkylphosphonates.
Molecules
January 2025
Department of Organic Chemistry and Technology, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Műegyetem rkp. 3., 1111 Budapest, Hungary.
A series of α-hydroxy-alkylphosphonates and α-hydroxy-alkylphosphine oxides were synthesized by the Pudovik reaction of acetaldehyde and acetone with dialkyl phosphites or diarylphosphine oxides. The additions were performed in three different ways: in liquid phase using triethylamine as the catalyst (1), on the surface of AlO/KF solid catalyst (2), or by a MW-assisted NaCO-catalyzed procedure (3). In most of the cases, our methods were more efficient and more robust than those applied in the literature.
View Article and Find Full Text PDFCan Magnoflorine Improve Memory? Immunohistochemical Studies on Parvalbumin Immunoreactive Neurons and Fibers of Mice Hippocampus.
Nutrients
December 2024
Department of Pharmacognosy with Medicinal Plant Garden, Medical University in Lublin, 1 Chodzki St., 20-093 Lublin, Poland.
: We assessed the influence of long-term injection of magnoflorine (MAG) on memory acquisition in mice for the first time. : This isoquinoline alkaloid that belongs to the aporphines was isolated from the roots of by centrifugal partition chromatography (CPC) using a biphasic solvent system composed of chloroform: methanol: water in the ratio 4:3:3 (//) with 20 mM of hydrochloric acid and triethylamine, within 64 min. : Our results indicated that long-term injection of MAG 20 mg/kg dose improve the long-term memory acquisition in mice that were evaluated in the passive avoidance (PA) test with no toxicity records.
View Article and Find Full Text PDFAn Electrochemiluminescence Biosensor for Detection of Methyl Parathion With a Novel Probe Ru-MIL-100 via the Acetylcholinesterase Inhibition Coupled With the Reaction Between HAc and Triethylamine.
Luminescence
January 2025
College of Environmental Science and Engineering, Guilin University of Technology, Guilin, China.
It is of great significance to develop sensors for trace pesticide residues detection in food. Herein, an electrochemiluminescence (ECL) sensor with high sensitivity for the detection of methyl parathion (MP) was constructed by combining of the acetylcholinesterase (AChE) enzyme-inhibited reaction with tris-2,2'-bipyridyl ruthenium Ru(bpy) -triethylamine (TEA) system for the first time. A new ECL probe of MIL-100 loaded with Ru(bpy) (Ru-MIL-100) was synthesized, and then Ru-MIL-100 and AChE were immobilized on the electrode with Nafion.
View Article and Find Full Text PDFCharacterization and Analytical Method Validation for Potential Impurities of a Merchantability Drug Substance Fluoxetine HCl.
Biomed Chromatogr
February 2025
School of Chemistry & Physics, College of Agriculture, Engineering & Science, Westville Campus, University of KwaZulu-Natal, Durban, South Africa.
A new selective and sensitive high-performance liquid chromatography (HPLC) method was developed for the quantification of potential impurities in fluoxetine hydrochloride. Chromatographic separation was achieved on an end-capped octadecylsilyl silica gel (Gemini-C18 150 mm × 4.6 mm, 3.
View Article and Find Full Text PDFA Doped Surface Ionization Method for Ion Mobility Spectrometry.
Rapid Commun Mass Spectrom
March 2025
State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China.
Rationale: Exhaled breath can be used for early warning of disease, with organic nitrogen compounds, including triethylamine (TEA), being linked to various medical conditions. Surface ionization ion mobility spectrometry (SI-IMS) facilitates the direct detection of TEA in exhaled breath. However, the presence of multiple ionization products of TEA poses challenges for both quantitative and qualitative analyses.
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