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42 results for “biological activity”
Linda R. AbdulRaheem1, Aws N . Abdlaziz1, Mohammed H . Ali1, Khalid A. Alalbadrany2
Abstract: Drug-resistant bacteria—including multidrug-resistant strains, persistent infections, and emerging pathogens—continue to spread rapidly, posing a serious threat to global public health. This situation highlights the urgent need to develop new, highly effective antimicrobial agents. In this study, a series of tetrazole derivatives were synthesized as…
Keywords: Tetrazole, Hydrazones, Hydrazide, Biological activity.
DOI: 10.65382/2221-8688-2026-3-451-464
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F.T. Saeed1*, E.A. Sulliman2
Abstract: A new Schiff base ligand obtained from carbazole was synthesized and structurally characterized. Its coordination complexes with Co (II), Ni (II), Cu (II), and Zn (II) ions were prepared for the first time and investigated through various spectroscopic techniques, including ¹H-NMR, UV-Vis, and FT-IR.…
Keywords: carbazole, transition metal complexes, DFT, biological activity, coordination chemistry
DOI: 10.65382/2221-8688-2026-3-416-429
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A.H. Ali
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Roaa R. Abdljabar, Farah T. Saeed
The aim of this work was to create new ligand complexes and evaluate their effectiveness against certain strains of bacteria. A Brucker Tensor 27co FTIR spectrophotometer was used to record the infrared spectra. Elemental analysis (C, H, N) was carried out on an AA670 atomic…
DOI: 10.32737/2221-8688-2024-2-197-210
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Saif Y. Ahmed, *Nabeel A. Abdul-Rida
Abstract: The current research involves the synthesis of some NSAID derivatives and evaluating their antimicrobial and antioxidant activity. Briefly, some NSAID compounds were converted into ester derivatives using the Fischer esterification method. The synthesized compounds were spectrometrically characterized via modern methods FT-IR, 1H-NMR, and 13C-NMR…
Keywords: NSAIDs drugs, Antioxidant, Fischer-esterification, Antimicrobial
DOI: 10.65382/2221-8688-2026-1-55-61
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Afraa Sabir Shihab
This study involves the preparation of various organic compounds. Ethylnyl 2-((5-chloroquinolin- 8-yl)oxy)acetate compound (A1) was synthesized by adding Potassium carbonate to quinoline and ethyl chloroacetate. The 2-((5-Chloroquinolin-8-yl)oxy) acetohydrazide (A2) was prepared by reacting compound (A1) with hydrazide. Complex of (A3) were obtained by reacting equimolar…
DOI: 10.32737/2221-8688-2024-4-525-539
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Sakar M. Abdalrazaq, Afraa S. Shihab, Iyad S. Hamad
Nickel complexes are effective catalysts for cross-coupling reactions between alkyl Grignard reagents and alkenyl–S and alkenyl–Se compounds. In this study, various organic compounds were prepared. Ethylnyl 2-((5-chloro-8-quinolinol)oxy) acetate compound (designated as A1) was synthesized by adding potassium carbonate to quinoline and ethyl chloroacetate. The second…
DOI: 10.32737/2221-8688-2024-2-157-167
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Ruaa J. Kamel, Nabeel A. Abdul-Rida
In this study, the authors chemically synthesized new theophylline derivatives and then evaluated them in vitro as antimicrobial agents. The target derivatives, theophylline derivatives conjugated with 1,2,3- triazole and piperazine moieties, were synthesized via sequential various reactions. Spectroscopically, the researchers employed FT-IR, 1H NMR, and…
DOI: 10.32737/2221-8688-2025-4-549-555
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Zahraa S. Qasim, Kareem S. Abbas
Our study is included the synthesis of a number of benzamide drivatives through two chemical processes. The first is the benzoylation of some aromatic amines containing a pyrimidine or a pyrazoline ring in their structures (A-G) using benzoyl chloride or p-chloronbenzoyl chloride in the presence…
DOI: 10.32737/2221-8688-2024-4-411-435
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Afraa Sabir Shihab
This study includes the preparation and characterization of new compound (4-bromo-5-(N-((4- chlorophenyl) (1,1-dioxide-3-oxobenzo isothiazol-2(3H)-yl)methyl)sulfamoyl)-2-((furan- 2-ylmethyl)amino)benzoic acid) from the reaction of furosemide, Saccharin and p-bromo benzaldehyde in a molar ratio 1:1:1 in ethanol. All the complexes are prepared from the reaction of Mannich bases with metal…
DOI: 10.32737/2221-8688-2024-3-312-323
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Ruwa M. Mauf , Neam H. Saleem
This work describes the preparation and spectroscopic investigation of new heterocyclic compounds derived from the 4-aminoantipyrene moiety. The compound (R1)3-((1,5-dimethyl-3-oxo-2- phenyl-2,3-dihydro-1H-pyrazol-4-yl)diaz-enyl)-4-hydroxybenzaldehyde was prepared by reacting 4- aminoantipyrene with 4-Hydroxybenzaldehyde according to the cold condition at (0-5) Celsius. This represents the starting point to create novel…
DOI: 10.32737/2221-8688-2025-2-272-285
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Sara L. Khalil, Neam H. Saleem
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A.A. Aldabagh, F.H.M. Altaiea
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Shahad A. Qasim, Farah T. Saeed*
The research demonstrates that thioether-based coordination complexes obtain their physicochemical properties and biological activity from both the metal ion type and the ligand molecular structure. The synthesized complexes showed tetrahedral coordination geometries, as evidenced by spectroscopic, magnetic, and conductivity measurements, which demonstrated that sulfur atoms…
Keywords: Thioether ligands; Disulfide derivatives; Coordination complexes; Tetrahedral geometry; Antimicrobial activity; Transition metals
DOI: 10.65382/2221-8688-2027-1-65-77
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A.R. Kadhim, S.A. Aowda, M.M. Kareem*
Polyacrylic acid has been utilized to react with a variety of substances to create novel compounds with biological activity because it is a recognized safe material to work with. In this work, the AB chemical was created by reacting polyacrylic acid with benzidine. It was…
Keywords: polyacrylic acid, biological activity, Schiff-base compounds, anti-oxidant activity.
DOI: 10.65382/2221-8688-2027-1-112-127
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I.Sh.Huseynov, S.B.Zeynalov
Analysis of epoxiamines and aminospirits obtained from the interaction of epichlorhydrine with amines has been conducted. Antioxidant activity of epoxiamines and biological activity of aminospirits including antifungus and ontibacterial action aminospirits have been examined.
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Hayfa Al-Badrani, Nameer S. Ezzat, Yassir S. Al-Jawaheri
In this research paper, we successfully synthesized some of E-1-(iodomethy-lene)-8-(aryl)-1,2,7,8- tetrahydro-9H benzo[6,7][1,4]oxazepino [4,5-a] quinazolin-9-one (compounds 3a-f) through electrophilic cyclization of 3-aryl-2-(2-(prop-2-yn-1-yloxy) phenyl)-2,3-dihydroquinazolin-4(1H)-one derivatives (compounds 2a-f) using iodine as an electrophilic source and potassium carbonate as a base in dichloromethane at room temperature in good yield.…
DOI: 10.32737/2221-8688-2025-3-343-355
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V.Q.Ibrahimov, E.I.Mammadov, O.I.Quliyeva
H-(2-cyclohexilpirril) acetic acid has been synthesized through the reaction of cyclohexil β,γ-dichlorketon with glycin in the water solution of alkali. Biological activity of sodium salt of the synthesized acid has been tested in comparison with heteroacetik and hybberel acids. It has been established that it…
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C.Y. Shukurov
Nowadays there are various antifungal agents. These included many substances, including derivatives of dithiocarbamates. The article aims to synthesize new derivatives of dithiocarbamate and study their antifungal activity. To analyze and identify synthesized substances and determine their structural formulas, the following spectral methods were used:…
DOI: 10.32737/2221-8688-2020-2-174-180
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Zina L. Khaleel, Yassir S. Al-Jawaheri
A series of novel Schiff bases linked to Furanoanthracene-12,14-Dione (5-10) were synthesized. The first step involved the reaction of anthracene with maleic anhydride, which produced dione (1). The next step was treated the dione with aniline to produce the imide (2). In the third step,…
DOI: 10.32737/2221-8688-2025-3-433-442
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