alexa Design, synthesis, anti-inflammatory, analgesic screening, and molecular docking of some novel 2-pyridyl (3H)-quinazolin-4-one derivatives
Microbiology

Microbiology

Journal of Chemical Biology & Therapeutics

Author(s): Eweas AF, ElNezhawy AOH, Baiuomy AR, Awad MM

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A novel series of 6-bromo-2-(4-pyridyl)-quinazolin-4(3H)-ones were synthesized by reacting 5-bromo anthranilic acid with isonictinoly chloride in the presence of acetic anhydride, which were further reacted with p-amino acetophenone to obtain 3-(4-acetylphenyl)-6-bromo-2-(pyridin-4-yl)quinazolin-4(3H)-one (3). Compound 3 underwent further reactions with different aldehydes to afford chalcone derivatives 4–10, which in turn underwent various cyclization reactions to afford cyclized products 15–18. 2-aminothiazole derivatives 12 obtained by reaction of 3 with bromine then with thiourea. Compound 14 obtained by treatment of 11 with KSCN followed by cyclization. Some of the synthesized compounds 4, 5, 12, 14, 15 and 18 were screened for both analgesic and anti-inflammatory activities. All tested compounds showed good analgesic and anti-inflammatory activity in comparison to the reference standard indomethacin. Compounds 4 and 5 showed the highest anti-inflammatory activity, while compounds 14 and 15 showed the highest analgesic activity among all the tested compounds.

This article was published in Med Chem Res and referenced in Journal of Chemical Biology & Therapeutics

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