4 results match your criteria: "Cairo University Giza 12613 Egypt kmdawood@sci.cu.edu.eg +202 35727556.[Affiliation]"

Article Synopsis
  • * Over 20% of marketed medications contain fluorine, with nearly 300 approved fluorine-containing drugs, highlighting their significance in pharmaceuticals.
  • * This review focuses on the therapeutic potential of five-membered heterocycles and their fused systems, detailing various activities like antiviral, anti-inflammatory, and more, often showing effectiveness comparable to standard reference drugs.
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Article Synopsis
  • Fluorinated heterocycles are crucial in pharmaceuticals, with about 20% of anticancer and antibiotic drugs containing fluorine atoms, prompting this review of five-membered and benzo-fused systems with fluorine.
  • These compounds have demonstrated notable anticancer and antimicrobial activities, with some serving as lead structures for drug development, showing efficacy comparable to or better than existing drugs.
  • Studies indicate that the type of substituents on these fluorinated heterocycles (electron-donating or electron-withdrawing) greatly influences their biological activity and safety profiles, showcasing reduced cytotoxicity in non-cancerous cells.
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The reaction of 3-oxo-2-arylhydrazonopropanals with acetoacetanilide in an equimolar ratio, under DBU/1,4-dioxane/microwave irradiation reaction conditions, resulted in chemoselective formation of 4-arylazo-5-hydroxy-benzamide derivatives. The structures of the obtained biphenyl-4-carboxamides were characterized by several spectroscopic techniques including IR, H- and C-NMR, MS and HRMS, and X-ray single crystals of three examples. The photophysical properties of the new products were also evaluated, with a particular focus on their absorption and emission spectra, which provided valuable information regarding their optical properties.

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