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Table 2: Antimicrobial activity of the synthesized compounds.

Compounds Minimum inhibitory concentrations MICs (μg/mL) Gram positive Gram negative S. faecalis S. aureus B. subtilis E. coli P. aeruginosa E. cloacae 1 3.12 25.00 50.00 50.00 25.00 50.00 2a 3.12 6.25 3.12 6.25 1.56 50.00 2b 3.12 50.00 25.00 6.25 25.00 1.56 2c 3.12 3.12 50.00 12.50 25.00 12.50 3a 3.12 6.25 50.00 3.12 3.12 25.00 3b 1.56 12.50 0.78 3.12 50.00 3.12 3c 3.12 6.25 6.25 25.00 6.25 3.12 3d 3.12 6.25 6.25 12.50 3.12 6.25 3e 3.12 1.56 50.00 25.00 25.00 6.25 3f 3.12 12.50 25.00 6.25 50.00 25.00 4a 3.12 3.12 50.00 6.25 50.00 50.00 4b 3.12 25.00 3.12 1.56 6.25 12.50 4c 3.12 12.50 25.00 6.25 6.25 12.50 4d 3.12 6.25 3.12 12.50 3.12 25.00 4e 3.12 3.12 50.00 1.56 50.00 50.00 5a 3.12 1.56 6.25 25.00 6.25 3.12 5b 3.12 12.50 1.56 25.00 50.00 50.00 5c 3.12 50.00 1.56 6.25 6.25 50.00 5d 3.12 50.00 25.00 6.25 3.12 6.25 5e 3.12 0.78 12.50 6.25 25.00 25.00 5f 3.12 25.00 50.00 50.00 3.12 1.56 Penicillin 1.56 1.56 1.56 6.25 6.25 3.12 Kanamycin 3.12 1.56 0.39 3.12 3.12 1.56