Synthesis and Biological Evaluation of Novel 5,7-Dichloro-1,3-benzoxazole Derivatives

Table 2

Antibacterial activity of compounds 4–11.

Compounds	Zone of inhibition of test bacteria (in cm)
	B. cereus	S. aureus	P. aeruginosa	K. pneumoniae	E. coli
4	2.8	1.9	2.3	2.6	2.1
5	2.4	2.5	2.2	2.6	2.2
6	2.4	2.0	1.3	1.6	1.3
7	1.3	1.4	1.4	1.8	1.8
8	3.0	2.1	2.2	2.4	2.6
9	1.0	0.8	0.8	1.1	0.8
10	1.8	2.0	1.5	1.9	1.8
11	1.9	1.6	1.7	1.8	1.8
DMSO	0.0	0.0	0.0	0.0	0.0
Standard	3.1	3.0	2.8	2.7	2.8

Standard-Chloramphenicol.