期刊
EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY
卷 63, 期 -, 页码 340-346出版社
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.ejmech.2013.02.025
关键词
4-Substituted-5-(2-thienyl)-2,4-dihydro-3H-1,2,4-triazole-3-thiones; Mannich bases; Biological activity
资金
- FUBAP, Elazig, Turkey [FF.11.38]
A novel series of compounds were synthesized by cyclic condensation reaction of substituted isothiocyanate (2a-c) with 2-thiophenecarboxylic acid hydrazide (1) in the presence of ethyl alcohol, to obtain intermediate thiosemicarbazides (3a-c), which were further treated with sodium hydroxide in the presence of ethanol to obtain triazole derivatives (4a-c). The latter were refluxed with substituted secondary amines and formaldehyde for 6-10 h to afford Mannich bases (5a-k). The synthesized compounds were characterized on the basis of their spectral (IR, C-13 and H-1 NMR) data and evaluated for biological activities. Some of the compounds were found to exhibit significant antimicrobial and antioxidant activity. (C) 2013 Elsevier Masson SAS. All rights reserved.
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