Novel Microwave Assisted Synthesis of Some 3‌־ {2‌־ (1H‌־ 1, 2, 4-triazolyl) ethyl}‌־2‌־ Substituted Quinazolinone Analogues and Their Evaluation for Antimicrobial Potential

نویسندگان

1 Department of Pharmaceutical Chemistry, K. B. H. S. S Trusts Institute of Pharmacy, Malegaon, Dist. Nashik, Savitribai Phule Pune University, Pune, India

2 Department of Pharmaceutical Chemistry, K. B. H. S. S Trusts Institute of Pharmacy, Malegaon, Dist. Nashik, Savitribai Phule Pune University, Pune, India

3 Department of Pharmacology, K. B. H. S. S Srusts Institute of Pharmacy, Malegaon, Dist. Nashik, Savitribai Phule Pune University, Pune, India

4 Department of Pharmaceutics, K. B. H. S. S Trusts Institute of Pharmacy, Malegaon, Dist. Nashik, Savitribai Phule Pune University, Pune, India

5 Departments of Pharmaceutical Chemistry, Divine College of Pharmacy, Satana-423301, Savitribai Phule Pune University, Pune, India

doi
10.48309/pcbr.2026.545107.1464
چکیده

A significant class of fused heterocyclic compounds, quinazolinones have garnered a lot of interest in medicinal chemistry due to their di-verse range of pharmacological characteristics, which include antimi-crobial, anticancer, anti-inflammatory, anticonvulsant, and antihyper-tensive effects. As a privileged scaffold, the quinazolinone nucleus pro-vides a variety of substitution options at the 2- and 3-positions, fre-quently resulting in compounds with increased bioactivity. Many stud-ies have looked into modifying these positions to create new therapeu-tic possibilities, especially in the field of antimicrobial drug discovery. The new sequence to develop 1, 2, 4 ־triazole derivatives via Nie-mentowski reactions and heterocyclization using microwave synthesiz-er through benzoxazinone intermediate formation was discussed. 1, 2, 4־ triazole and 3‌־ {2‌־ (1H‌־ 1, 2, 4- triazolyl) ethyl} ־2  ־ substituted quinazo-linone derivatives were derived and investigated by IR spectroscopy, mass spectrometry and NMR techniques. These new triazole analogues have been tested for their in vitro antibacterial and antifungal proper-ties against a variety of gram-positive, gram-negative, and fungal spe-cies. These new analogues show moderate antibacterial and antifungal action by inhibiting growth by 30-40% against S. aureus, E. coli, C. albi-cans, and A. niger.