Table 2.

Biological activity of derivatives containing a nitro or amino group in the benzylidene substituent.

	Compound
Microorganism	4a	4b	4c	5a	5b	5c	6a	6b	7a	7b
	MIC (mg/L)
S. aureus ATCC 25923	125	250	125	15.6	250	>1000	500	250	500	31.25
S. aureus ATCC 6538	250	250	250	125	125	>1000	500	125	250	31.25
S. aureus ATCC 43300	250	250	250	125	125	>1000	500	125	250	31.25
S. epidermidis ATCC 12228	125	500	31,3	31.3	250	>1000	>1000	250	500	31.25
M. luteus ATCC 10240	250	1000	125	125	500	>1000	250	62.5	1000	62.5
B. subtilis ATCC 6633	62.5	500	250	15.6	62.5	>1000	250	62.5	500	15.6
B. cereus ATCC 10876	250	250	250	125	250	>1000	>1000	125	250	31.25
S. pyogenes ATCC 19615	125	>1000	125	62.5	>1000	>1000	250	125	250	62.5
S. pneumoniae ATCC 49619	250	>1000	125	250	>1000	>1000	125	62.5	250	62.5
S. mutans ATCC 25175	250	>1000	250	500	>1000	>1000	1000	250	500	250