Synthesis of 3,6-disubstituted 7H-1,2,4-triazolo[3,4-b]-1,3,4-thiadiazines as novel analgesic/anti-inflammatory compounds

AYTAÇ S. A. , Tozkoparan B. , KAYNAK F. B. , Aktay G., Goektas O., Uenuevar S.

EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY, cilt.44, sa.11, ss.4528-4538, 2009 (SCI İndekslerine Giren Dergi) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 44 Konu: 11
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1016/j.ejmech.2009.06.026
  • Sayfa Sayıları: ss.4528-4538


In this study, a new class of 4-amino-3-substituted-1,2,4-triazole-5-thiones (1-4) and their corresponding condensed derivatives 3,6-disubstituted 7H-1,2,4-triazolo[3,4-bi-1,3,4-thiadiazines (1a-4c) were synthesized and evaluated for their analgesic/anti-inflammatory activities. All synthesized compounds were also tested for their gastric toxicity and antioxidant activity on acute administration. Most of the compounds showed significant activity in both carrageenan-induced oedema and acetic acid-induced writhing tests besides negligible gastrointestinal toxicity. The compounds showing less ulcerogenic effect also showed less lipid peroxidation (LPO) level. Most promising results were obtained with the compounds that placed a fluoro or a chloride on the phenyl ring at the sixth position of the fused ring. (C) 2009 Elsevier Masson SAS. All rights reserved.