Antibacterial agent 50 (example 47) is a compound that exhibits antibacterial activity. It shows minimum inhibitory concentration (MIC) values of 32, 64, and 128 mcg/mL against three strains of E. coli, namely NCTC 13351, M 50, and 7 MP, respectively (WO2013030733A1).
Antibacterial agent 32 exhibits potent antimicrobial activity against E. coli strains NCTC 13351, M 50, and 7 MP, with minimum inhibitory concentration (MIC) values of 1 mcg/mL, 2 mcg/mL, and 8 mcg/mL, respectively (WO2013030733A1, example 43).
Antibacterial agent 51 (example 45) is a potent antibacterial compound effective against E. coli strains NCTC 13351, M 50, and 7 MP, with MIC values of 4, 8, and 8 mcg/mL, respectively (WO2013030733A1).