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- W2475121938 abstract "The following hydrazono derivatives (I-XXIII) of type (A), (formula; see text) where: X = NO2 (II, IV, VI, VIII, X, XIV-XXIII), X = H (I, III, V, VII, IX, XI, XII, XIII), and Y = H (I, II); 3-Cl (III, IV); 4-Cl (V, VI); 3,4-Cl2 (VII, VIII); 2,6-Cl2 (IX, X); 2-NO2 (XI); 3-NO2 (XII); 4-NO2 (XIII, XIV); 2-F (XV); 3-F (XVI); 4-F (XVII); 2-OH (XVIII); 4-OH (XIX); 2,4-(OH)2(XX); 2,4,6-(OH)3(XXI); 2,3-(OH,NO2) (XXII); 2,4-(NO2)2 (XXIII), were prepared and tested for antibacterial and antifungal activity. All of these compounds were prepared in satisfactory yield by reaction of aromatic aldehydes with 2-furoyl and 5-nitro-2-furoyl hydrazide. The hydrazono derivatives I-XXIII prepared in this investigation were screened for antimicrobial activity by a disk-diffusion assay (Kirby-Bauer modified). The organisms used were laboratory cultures of S. aureus, S. -haemoliticus, B. subtilis, M. paratuberculosis, E. coli, S. typhi, Ps. aeruginosa, K1. pneumoniae, A. niger, S. cerevisiae, C. albicans. The results of this study showed that a number of the prepared hydrazono derivatives exhibited varying degrees of activity against Gram-positive and Gram-negative bacteria. Compounds IV and XV possessed broad spectrum in vitro against Gram-positive and Gram-negative bacteria. Compounds XII greater than IV greater than XV showed inhibitory activity especially toward S. aureus. Compounds IV greater than XV greater than XVI were especially active against E. coli. Compounds XV greater than IV were especially inhibitory toward S. typhi and most of the prepared compounds inhibited considerably Ps. aeruginosa and K1. pneumoniae." @default.
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- W2475121938 date "1989-04-01" @default.
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- W2475121938 title "Structure-activity relationships of hydrazono derivatives of biological interest." @default.
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