New 1,3,4-thiadiazole derivatives endowed with analgesic and anti-inflammatory activities

Two series of N-[5-oxo-4-(arylsulfonyl)-4,5-dihydro-1,3,4-thiadiazol-2-yl]-amides were synthesized and tested in vivo for their analgesic and anti-inflammatory activities. All the new compounds possess good antalgic action in the acetic acid writhing test and some terms of the series showed also fair anti-inflammatory activity in the carrageenan rat paw edema test. Ulcerogenic and irritative action on the gastrointestinal mucose, in comparison with indomethacin is low.

New 2,4-disubstituted 1,3,4-thiadiazole derivatives 3a–t were synthesized and tested for pharmacological actions. Compounds showed interesting analgesic and anti-inflammatory activity in vivo; ulcerogenic action was also reported.Figure optionsDownload as PowerPoint slide