Table 3. Antibacterial activities.

Compound	MIC (µg/mL)			Combination	MIC (µg/mL)
	E. coliATCC25922	S. aureusATCC29213	R. solanacearum		E. coliATCC25922	S. aureusATCC29213	R. solanacearum
1	–	–	–	2 + 1	–	64	64
2	–	–	–	2 + 3	–	–	–
3	–	–	–	2 + 4	–	128	256
4	–	–	–	2 + 5	128	32	64
5	–	64	64	2 + 6	–	4	128
6	–	32	32	2 + 7	256	16	64
7	–	64	64	5 + 6	256	16	32
8	–	–	–	2+4+5	–	64	64
9	–	256	256	2+4+5+6	–	64	64
Amikacin	1	1	1	1+2+3+4 +5+6+7	256	64	32

Notes.

“–” indicate inactive (MIC > 256 µg/mL).