Table 4.

Antibacterial activity.

Compound	MIC/IC50 (μg/mL)a	tumefaciens	B. subtilis	P. lachrymans	R. solanacearum	S. haemolyticus	X. vesicatoria
11	MIC	128	>128	128	128	>128	128
	IC50	60.55	ndb	53.68	55.26	nd	66.62
16	MIC	64	128	32	128	64	64
	IC50	20.91	37.80	14.06	36.98	27.31	24.04
20	MIC	128	>128	>128	128	>128	128
	IC50	46.81	Nd	nd	48.22	nd	53.10
Streptomycin sulfatec	MIC	16	16	16	16	16	16
	IC50	3.82	6.11	4.16	3.29	8.97	6.10

^aThe other tested compounds were inactive (MIC >128 μg/mL).

^bnd: not determined.

^cPositive control.