Journal
EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY
Volume 44, Issue 1, Pages 63-69Publisher
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.ejmech.2008.03.006
Keywords
1,2,4-Triazoles; 1,3,4-Thiadiazoles; Cytotoxicity; PFC; LIF
Categories
Funding
- National Science Fund/Ministry of Education and Science [X1408]
- Science Fund/Chemical Technology and Metallurgy [10366]
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Novel derivatives of 4,5-substituted-1,2,4-triazole-thiones and 2,5-substituted-1,3,4-thiadiazoles were synthesized and evaluated for their cytotoxicity. The biological study indicated that compounds 4-ethyl-5-(4,5,6,7-tetrahydro-1-benzothien-2-yl)-2,4-dihydro-3H-1,2,4-triazole-3-thione 13, N-ethyl-5-(4,5,6,7-tetrahydro-1-benzothien-2-yl)-1,3,4-thiadiazol-2-amine 16, 4-amino-5-(4,5,6,7-tetrahydro-1-benzothien-2-yl)-2, 4-dihydro-3H-1,2,4-triazole-3-thione 20 and 4-amino-5-(5-phenylthien-2-yl)-2,4-dihydro-3H-1,2,4-triazole-3-thione 21 possessed high cytotoxicity in vitro against thymocytes, The corresponding IC50 values were 0.46 mu M, 5.2 x 10(-6) mu M, 0.012 mu M and 1.0 x 10(-6) mu M. Most toxic against lymphocytes was compound 21, IC50 - 0.012 mu M. The tested compounds showed a general stimulation effect on B-cells' response. (C) 2008 Elsevier Masson SAS. All rights reserved.
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