Preparation and Antibacterial Activity of Some New 4-(2-Heterylidenehydrazinyl)-7-chloroquinoline Derivatives

Table 4

Antimicrobial activity of hydrazones 4a–f.

Samp.	Minimum inhibitory concentration (MIC: μg/mL)
	Bacterial strains				Fungal strains
	EC	PA	BS	SA	AN	FO	SC	CA
4a	(−)	(−)	25	(−)	50	(−)	(−)	(−)
4b	(−)	(−)	25	(−)	50	(−)	(−)	(−)
4c	(−)	(−)	25	(−)	50	(−)	(−)	(−)
4d	(−)	(−)	(−)	(−)	(−)	(−)	(−)	(−)
4e	(−)	(−)	(−)	(−)	(−)	(−)	(−)	(−)
4f	(−)	(−)	(−)	(−)	25	(−)	(−)	(−)

(−) means negative; EC, PA, BS, and SA stand for Escherichia coli, Pseudomonas aeruginosa, Bacillus subtilis, and Staphylococcus aureus; AN, FO, SC, and CA stand for Aspergillus niger, Fusarium oxysporum, Saccharomyces cerevisiae, and Candida albicans.