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Pyrrolnitrin analogues. XII. Synthesis and biological activity of some pyrazole carboxylic acids.

Some 1,5-diaryl-, 1-aryl-5-(2-nitrobenzyl)-3-methylpyraloze-4-carboxylic acids and some of their 4-morpholino- and 4-N-methylpiperazino amides are prepared and tested as antibacterial agents. None of the tested compounds shows any noteworthy antimicrobial activity. The results are discussed and compared with the previously published results for other similarly structured compounds.

Anti-Bacterial Agents↗

Pyrrolnitrin analogues. X. Synthesis and biological activity of 1-chlorophenyl-3- or 5-nitrophenyl-pyrazole-4-carboxylic acids.

The synthesis and the in vitro antimicrobial activity of all the possible 1-chlorophenyl-3-nitrophenyl-5-methylpyrazole-4-carboxylic acids and 1-chlorophenyl-3-methyl-5-nitrophenylpyrazole-4-carboxylic acids are reported. Some acids showed an interesting activity against some strains of gram-positive bacteria. The results are discussed and compared with those of other related compounds.

Anti-Bacterial Agents↗