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  • Title: Synthesis, in Vivo Anti-inflammatory, and in Vitro Antimicrobial Activity of New 5-Benzofuranyl Fused Pyrimidines.
    Author: Nassar E, El-Badry YA, El Kazaz H.
    Journal: Chem Pharm Bull (Tokyo); 2016; 64(6):558-63. PubMed ID: 27250790.
    Abstract:
    Chalcone (3) has been synthesized as a new chalcone derivative bearing benzofuran moiety at 1 position. Such chalcone was used as a model dielectrophile applied to react with some nucleophiles such as 5-amino pyrazoles, 5-amino-1,2,4-triazole, 2-aminobenzimidazole, and 6-uraciles under Michael reaction conditions and resulted in a new series of fused pyrimidines such as pyrazolo[1,5-a]pyrimidines 7a-e, [1,2,4]-triazolo[1,5-a]pyrimidine 9, pyrimido[1,2-a]benzimidazole 11, and synthesis of pyrido[2,3-d]pyrimidinones 13a and b. The structures of the synthesized target heterocyclic compounds were confirmed by microanalytical and spectral data such as Fourier transform (FT)-IR, (1)H-NMR, and MS spectra. The newly synthesized compounds were evaluated for their anti-inflammatory and antimicrobial activities; most showed significant activities.
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