Synthesis of some new 1-acylthiosemicarbazides, 1,3,4-oxadiazoles, 1,3,4-thiadiazoles and 1,2,4-triazole-3-thiones and their anti-inflammatory activities.
Sixteen 1-(1-naphthyloxy)acetyl-4-substituted-3-thiosemicarbazides, 2-substituted amino-5-(1-naphthyloxy)methyl-1,3,4-oxadiazoles, 2-substitutedamino-5-(1-naphthyloxy) methyl-1,3,4-thiadiazoles and 3-(1-naphthyloxy)methyl-4-substituted-1,2,4-triazole-5-thiones were synthesized. The structures of the compounds have been elucidated by UV, IR, 1H-NMR, 13C-NMR spectra and elemental analysis. The anti-inflammatory activities of the compounds were evaluated by carregeenan induced hind paw edema and air-pouch inflammation tests in mice. In carrageenan induced hind paw edema test, compounds 1a, 1d, 3d, 4a showed equivalent or higher activity compared to naproxen and phenylbutazone. In the air-pouch inflammatory model, compounds 1a, 1b, 1d, 2c, 3c, 3d, 4a and 4d showed marked anti-inflammatory activity. The ED50 values of these compounds ranged between 24-36 mg/kg. Side effects of the compounds on gastrointestinal system and kidneys were examined and none of the compound showed significant side effects.
Sahin
G
G
Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey.
Palaska
E
E
Kelicen
P
P
Demirdamar
R
R
Altinok
G
G
D000388:Air; D000818:Animals; D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000138:chemical synthesis* / Q000494:pharmacology*; D001386:Azides / Q000138:chemical synthesis* / Q000494:pharmacology*; D002351:Carrageenan; D003460:Crystallization; D004487:Edema / Q000139:chemically induced / Q000473:pathology / Q000517:prevention & control; D005528:Foot / Q000473:pathology; D008297:Male; D051379:Mice; D010069:Oxadiazoles / Q000138:chemical synthesis* / Q000494:pharmacology*; D013056:Spectrophotometry, Ultraviolet; D013830:Thiadiazoles / Q000138:chemical synthesis* / Q000494:pharmacology*; D014230:Triazoles / Q000138:chemical synthesis* / Q000494:pharmacology*
D000894:Anti-Inflammatory Agents, Non-Steroidal; D001386:Azides; D010069:Oxadiazoles; D013830:Thiadiazoles; D014230:Triazoles; D002351:Carrageenan