S. Jantova et al., ANTIBACTERIAL EFFECT OF SUBSTITUTED 4-QUINAZOLYLHYDRAZINES AND THEIR ARYLHYDRAZONES DETERMINED BY A MODIFIED MICRODILUTION METHOD, Folia microbiologica, 40(6), 1995, pp. 611-614
Eight 4-quinazolylhydrazines and eleven their arylhydrazones have been
tested for antibacterial effects and for structure - activity relatio
nships by a modified microdilution method. The derivative -morpholino-
4-quinazoly-5'-nitro-2'-furylhydrazone had the highest antibacterial e
ffect, the MIC values being 100 mg/L for E. faecalis, 250 mg/L for S.
aureus, 200 mg/L for P. aeruginosa and 350 mg/L for E. coli. The most
effective derivatives were those with the benzene ring substituted wit
h chlorine or methyl group in position 6 or 8 and with pyrimidine ring
substituted with a secondary amine in position 2. The modified microd
ilution method did not give rise to any statistically significant devi
ations in the MIC values for ampicillin in comparison with reported re
ference collection values.