Table 3. The minimum inhibitory concentrations (MICs in μg mL–1) of compounds 6, 11, 12 and 13 against methicillin-sensitive Staphylococcus aureus, methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant Staphylococcus aureus (VRSA) strains.
| Bacterial strains a | Compounds/control antibiotics |
|||||
| 6 | 11 | 12 | 13 | Vancomycin | Linezolid | |
| Methicillin-sensitive Staphylococcus aureus ATCC 6538 | 8 | 1 | 0.5 | 0.5 | 1 | 0.5 |
| Methicillin-sensitive Staphylococcus aureus NRS 107 | 4 | 1 | 0.25 | 0.125 | 1 | 0.5 |
| MRSA NRS 119 | 8 | 1 | 0.5 | 0.06 | 1 | >64 |
| MRSA NRS382 (USA100) | 8 | 1 | 0.5 | 0.5 | 2 | 1 |
| MRSA NRS383 (USA200) | 8 | 2 | 0.25 | 1 | 1 | 1 |
| MRSA NRS384 (USA300) | 4 | 0.5 | 0.5 | 0.5 | 1 | 1 |
| MRSA NRS123 (USA400) | 4 | 1 | 0.5 | 0.25 | 1 | 1 |
| MRSA NRS 385 (USA500) | 8 | 2 | 2 | 0.5 | 2 | 1 |
| MRSA NRS 386 (USA700) | 4 | 1 | 0.5 | 0.125 | 1 | 1 |
| MRSA NRS 387 (USA800) | 4 | 2 | 0.125 | 0.25 | 2 | 1 |
| MRSA NRS 483 (USA1000) | 4 | 1 | 0.5 | 0.25 | 2 | 1 |
| MRSA NRS 484 (USA1100) | 4 | 0.5 | 0.5 | 0.5 | 2 | 2 |
| VRSA 10 | 4 | 1 | 0.5 | 0.25 | >64 | 1 |
| VRSA 12 | 8 | 1 | 0.5 | 0.125 | >64 | 1 |
aSee ESI for sources of bacterial strains.