title: Synthesis, in vitro antimicrobial and antioxidant activities of some new 4,5-dihydro-1H-1,2,4-triazol-5-one derivatives.
abstract: A series of compounds derived from 4,5-dihydro-1H-1,2,4-triazol-5-one were synthesized and characterized by spectral data. The 12 new compounds were analyzed for their potential in vitro antioxidant activities by three different methods. Compound 4f showed the best activity for the iron binding. In addition, the compounds 4 were titrated potentiometrically with tetrabutylammonium hydroxide in non-aqueous solvents. The RP-HPLC capacity factors (k') of the series were also determined on a C18 column, with methanol/water as the mobile phase. The correlation between log k' with the percentage of methanol in the mobile phase was used for the determination of the log kw values for these compounds. The antimicrobial activities of these compounds were also screened against bacteria and yeast.
authors: Department of Chemistry, Faculty of Science and Letters, Kafkas University, Kars, Turkey.
authors: Haydar
authors: H
authors: Yüksek
authors: Onur
authors: O
authors: Akyıldırım
authors: Mehmet L
authors: ML
authors: Yola
authors: Özlem
authors: Ö
authors: Gürsoy-Kol
authors: Mustafa
authors: M
authors: Çelebier
authors: Didem
authors: D
authors: Kart
mesh_terms: D000900:Anti-Bacterial Agents / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology*; D000935:Antifungal Agents / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology*; D000975:Antioxidants / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology*; D001419:Bacteria / Q000187:drug effects; D002175:Candida / Q000187:drug effects; D002851:Chromatography, High Pressure Liquid / Q000379:methods; D056148:Chromatography, Reverse-Phase / Q000379:methods; D013329:Structure-Activity Relationship; D014230:Triazoles / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology*
chemical_list: D000900:Anti-Bacterial Agents; D000935:Antifungal Agents; D000975:Antioxidants; D014230:Triazoles