title: Synthesis and cardiotonic activity of certain imidazo[2,1-b]-1,3,4-thiadiazole derivatives.
abstract: A series of 5-imino-2-methyl-4-(4'-substituted phenacyl)-1,3, 4-thiadiazole derivatives 3-5 have been synthesized and further used to prepare a series of 2-methyl-6-(4'-substituted phenyl)imidazo[2, 1-b]-1,3,4-thiadiazoles 6-8 and 5-substituted-2-methyl-6-(4'-substituted phenyl) imidazo[2, 1-b]-1,3, 4-thiadiazoles 9-18. All of newly prepared imidazothiadiazole compounds were screened for their cardiotonic activity in isolated guinea pig atria. The detailed synthesis, spectroscopic and biological data are reported.
authors.affiliation: Department of Medicinal Chemistry, Faculty of Pharmacy, University of Mansoura, Egypt.
authors.forename: M A
authors.initials: MA
authors.lastname: el-Sherbeny
authors.forename: E R
authors.initials: ER
authors.lastname: el-Bendary
authors.forename: H I
authors.initials: HI
authors.lastname: el-Subbagh
authors.forename: H A
authors.initials: HA
authors.lastname: el-Kashef
mesh_terms: D000818:Animals; D002316:Cardiotonic Agents / Q000138:chemical synthesis* / Q000494:pharmacology; D006168:Guinea Pigs; D006325:Heart Atria / Q000187:drug effects; D007093:Imidazoles / Q000138:chemical synthesis* / Q000494:pharmacology; D066298:In Vitro Techniques; D009200:Myocardial Contraction / Q000187:drug effects; D013830:Thiadiazoles / Q000138:chemical synthesis* / Q000494:pharmacology
chemical_list: D002316:Cardiotonic Agents; D007093:Imidazoles; D013830:Thiadiazoles