Research on heterocyclic compounds. XVIII. Imidazo[2,1-b]-1,3,4-thiadiazole derivatives.
The synthesis of a series of 6-carbethoxy-, 6-carbethoxy-methyl-, and 5-carbethoxy-6-methylimidazo[2,1-b]-1,3,4-thiadiazoles was accomplished by reacting some 2-amino-1,3,4-thiadiazoles with ethyl bromopyruvate, 4-chloroacetoacetate, and 2-chloroacetoacetate, respectively; such carbethoxy derivatives afforded the corresponding carboxylic acids by hydrolysis. The antiinflammatory, analgesic, antipyretic and ulcerogenic activities were studied on three of the new acidic compounds.
D000818:Animals; D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000138:chemical synthesis*; D055598:Chemical Phenomena; D002621:Chemistry; D006571:Heterocyclic Compounds / Q000138:chemical synthesis*; D006940:Hyperemia / Q000139:chemically induced; D051379:Mice; D051381:Rats; D013276:Stomach Ulcer / Q000139:chemically induced; D013830:Thiadiazoles / Q000138:chemical synthesis* / Q000494:pharmacology / Q000633:toxicity
D000894:Anti-Inflammatory Agents, Non-Steroidal; D006571:Heterocyclic Compounds; D013830:Thiadiazoles