Compounds

R

Molecular Formula

MIC µg/mL

% Inhibition

4a

CONH2

C25H20ClN3O5

>6.25

71

4b

CSNH2

C25H20ClN3O4S

>6.25

95

4c

NHCONH2

C25H21ClN4O5

>6.25

79

4d

NHCSNH2

C25H21ClN4O4S

>6.25

94

4e

COCH3

C26H21ClN2O5

>6.25

55

4f

COC6H5

C31H23ClN2O5

>6.25

68