RESUMO
A series of novel 4-aryl/chloroalkyl-2-(2,3,5-trichlorophenyl)-1,3-thiazoles (5a-g and 7a-e) were synthesized by condensing 2,3,5-trichlorobenzenecarbothioamide with phenacyl bromide/dichloroacetone. 2,3,5-Trichlorobenzaldehyde thiosemicarbazone on treatment with phenacyl bromide afforded 4-aryl-2-(2,3,5-trichlorophenylidenehydrazino)-1,3-thiazoles (10a-g) in good yield. The newly synthesized compounds are characterized by IR, (1)H NMR and mass spectral studies. These compounds were also screened for their antibacterial and antifungal activities. Preliminary results reveal that some of the synthesized compounds are showing promising antimicrobial activity.
Assuntos
Antibacterianos/síntese química , Antifúngicos/síntese química , Tiazóis/síntese química , Antibacterianos/química , Antibacterianos/farmacologia , Antifúngicos/química , Antifúngicos/farmacologia , Espectroscopia de Ressonância Magnética , Testes de Sensibilidade Microbiana , Espectrometria de Massas de Bombardeamento Rápido de Átomos , Espectrofotometria Infravermelho , Tiazóis/química , Tiazóis/farmacologiaRESUMO
Disubstituted 1,3,4-oxadaiazoles (4a-z, 4a'-f'), Mannich bases (6a-p) and S-alkylated derivatives (7a-t) have been synthesized from 2-(aryloxymethyl)benzoic acids (1a-d) through a multi-step reaction sequence. The structures of new compounds were established on the basis of their elemental analyses, IR, (1)H NMR, (13)C NMR and mass spectral data. All the synthesized compounds were screened for their in vitro antibacterial and antifungal activity and some of them exhibited good activity.
Assuntos
Anti-Infecciosos/síntese química , Anti-Infecciosos/farmacologia , Oxidiazóis/síntese química , Oxidiazóis/farmacologia , Anti-Infecciosos/química , Bactérias/efeitos dos fármacos , Fungos/efeitos dos fármacos , Espectroscopia de Ressonância Magnética , Espectrometria de Massas , Testes de Sensibilidade Microbiana , Oxidiazóis/química , Espectrofotometria UltravioletaRESUMO
A series of substituted triazolothiadiazoles have been synthesized by condensing 4-amino-3-[4-methylthiobenzyl]-4H-1,2,4-triazole-5-thiol (5) with substituted aryl furoic acids/aromatic acids in the presence of POCl3. The triazole (5) was obtained by the fusion of 4-methylthiophenyl acetic acid with thiocarbohydrazide. The structures of newly synthesized compounds are characterized by elemental analysis, IR, 1H NMR and mass spectroscopic studies and were screened for their antimicrobial activities. The preliminary results revealed that some of the compounds exhibited promising antimicrobial activities.