Compound Minimum inhibitory concentration (MIC) (μg mL-1)      Antibacterial activity Antifungal activity Gram +Ve bacteria Gram –Ve bacteria S. aureus B. subtilis K. pneumonia E.coli C. albicans A. flavus 4a 100 50 >100 100 50 100 4b 25 12.5 25 50 3.12 6.25 4c 25 50 50 100 50 100 4d ─ ─ 100 50 25 50 4e 25 50           50 25 100 50 4f 12.5 25 100 12.5 50 >100 4g ─ ─ >100 50 ─ ─ 4h 50 100 ─ ─ 100 >100 4i 6.12 12.5 25 12.5 12.5 3.12 4j 25 25 50 25 6.25 12.5 Ciprofloxacin 12.5 12.5 25 12.5 ─ ─ Fluconazole ─ ─ ─ ─ 6.25 6.25

(─) No activity. Lower MIC values indicate higher the antimicrobial activity. S. aureus: Staphylococcus aureus, B. subtilis:Bacillus subtilis, K. pneumonia: Klebsiella pneumonia, E.coli: Escherichia coli, C. albicans: Candida albicans.

Table 1: Antimicrobial activity (MIC profiles) of the synthesized compounds (4a–j).