many of these compounds ( 22 , 28 , 34 , 37-42 , 44 , and 45 ) indicate high activity against staphylococcus aureus , streptococcus faecalis , klebsiella pneumoniae , and pseudomonas aeruginosa and are more active than nitrofurantoin , compounds 22 , 34 and 41 exhibit the highest in vitro antibacterial activity in the series .
C0028156
nitrofurantoin
C0279516
antibacterial