Synthesis and antimicrobial activity of some novel 1, 2-dihydro-[1, 2, 4]triazolo[1, 5-a]pyrimidines bearing amino acid moiety. Issue 5 (13th January 2021)

• Record Type: Journal Article
• Authors: Mohamed, Mounir A. A.; Bekhit, Adnan A.; Abd Allah, Omyma A.; Kadry, Asmaa M.; Ibrahim, Tamer M.; Bekhit, Salma A.; Amagase, Kikuko; El-Saghier, Ahmed M. M.
• Is Part Of: RSC advances. Volume 11:Issue 5(2021)
• Page Start: 2905
• Page End: 2916
• Publication Date: 2021-01-13
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/d0ra08189b
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : A new series of [1, 2, 4]-triazole bearing amino acid derivatives were synthesized under green chemistry conditions and evaluated for their antimicrobial activities. Abstract : A new series of [1, 2, 4]-triazole bearing amino acid derivatives 2a–d –9a–d were synthesized under green chemistry conditions via multicomponent reaction using lemon juice as an acidic catalyst. The obtained compounds were characterized by different spectral and elemental analyses. The obtained candidates showed promising antibacterial activity against some standard bacteria and multidrug resistant (MDR) clinical isolates. In contrast to the reference drugs cephalothin and chloramphenicol, the tested compounds showed substantial better MIC values towards the tested MDR strains. The most active compounds 3c, 8a and 9d against MDR bacteria were tested for MBC and MIC index, the results indicted the bacteriostatic activity of these compounds. The most active compounds 2c, 2d, 3c, 8a, 8b, 9a, 9b, 9c and 9d showed a high selectivity index towards antimicrobial activity against K. pneumoniae and MRSA1 compared to mammalian cells, suggesting a good safety profile.