Antibacterial substd benzoylazophenols or - hydrazophenols
摘要
<p>The cpds. are of formula: (R = H, halogen, OH, NO2, lower alkyl or lower alkoxy; A and B are both H or form a second bond between the N atoms). They are esp. active against Gram-negative bacteria affecting the urinary tract, e.g., E. coli.</p>
