Author: Muhammad Abdul Qadir, Mahmood Ahmed and Anum Khaleeq
Publishing Date: 2016
Volume: 29 Issue: 5
Sulfonamides were developed by the simple reaction of amino acid with p-toluenesulfonyl chloride and structures of the new products (2a, 2b and 2c) were confirmed by elemental and spectral analysis (FT-IR, 1HNMR and13CNMR). In vitro, developed compounds were screened for their antibacterial and antifungal activities against two sensitive bacteria belonging to both gram positive and gram-negative types and two fungi. The synthesized sulfonamides (2a, 2b, 2c) exhibited excellent antifungal activities against the tested fungi. Among the tested compounds 2a and 2b have marked activity against E. coli with zone of inhibition (mm) 22.3±0.11and 20.2±0.26 (MIC: 12.5μg/mL, 12.5μg/mL) and S. aureus with zone of inhibition (mm) 20.2±0.26 and 23.2±0.55 (MIC: 12.5μg/mL, 6.25μg/mL). Compound 2c is moderately efficient towards E. coli (zone of inhibition (mm) 14.2±0.64, MIC: 100μg/mL) and no activity against S. aureus.
KEYWORDS: Inhibition zone; bacterial strains; sulfonamides.