Table 1. Antibacterial Activity of the Prepared Compounds at a Concentration of 20 mg/mLa.
| diameter of the zone of inhibition (mm) at 20 mg/mL |
||||
|---|---|---|---|---|
| sample | B. subtilis | S. aureus | P. aeruginosa | E. coli |
| 8a | NA | 11 | NA | NA |
| 8b | NA | NA | NA | 10 |
| 10a | NA | NA | NA | NA |
| 10b | NA | NA | NA | NA |
| 12a | 10 | 12 | NA | NA |
| 12b | 15 | 11 | NA | NA |
| 14a | NA | NA | NA | NA |
| 14b | NA | NA | NA | NA |
| tobramycin80 | 12 | 13 | ||
| ofloxacin81 | 20 | 17 | ||
| clindamycin | 27 | 23 | ||
| DMSO | 0.0 | 0.0 | 0.0 | 0.0 |
a
Standard antibiotic tobramycin (10 μg) for S. aureus and E. coli, ofloxacin (2 μg/disk) for Gram-negative bacteria, and clindamycin (2 μg/disk) for Gram-positive bacteria. NA: no activity.