Table 1. The structures and MIC values of 2-pyrazoline derivatives

No	Compound	R1	R2	MIC (μg/mL)
				E. coli	S. aureus
1	HP1	-H	-H	-	-
2	HP2	-Br	-H	-	64
3	HP3	-CH3	-H	-	128
4	HP4	-OCH3	-H	-	-
5	HP5	-Cl	-H	-	32
6	HP6	-H	-C6H5	-	4
7	HP7	-Br	-C6H5	-	8
8	HP8	-CH3	-C6H5	-	4
9	HP9	-OCH3	-C6H5	-	4
10	HP10	-Cl	-C6H5	-	4
11	HP11	-H	-COCH3	-	-
12	HP12	-Br	-COCH3	-	-
13	HP13	-CH3	-COCH3	-	-
14	HP14	-OCH3	-COCH3	-	-
15	HP15	-Cl	-COCH3	-	-