title: [Synthesis of new diheterocyclic derivatives of imidazole with antiparasitic activity].
abstract: A description is given of potential cyclic imidazoles such as 3,3-dichloro-2-methylenimino-acrylonitrile derived from nitro or non-nitro heterocycles, as well as the hydrazone, semicarbazone and arylpropenone derivatives of the 4-chloro-2-(5-nitro-2-thienyl) (V), 5-imidazole carboxaldehyde (IV) and the 5-bromothienyl analogue. The antiparasitic activity was tested in vitro against Trichomonas vaginalis and Entameba histolytica. Some of the nitro containing compounds showed trichomonacidal activity whereas one of the non-nitro compounds with potential imidazole structure showed clear amebacidal activity. This compound, 3,3-dichloro-2-methyleneimino acrylonitrile has anti-ameba activity comparable with that of metronidazole.
mesh_terms: D000818:Animals; D000981:Antiprotozoal Agents / Q000138:chemical synthesis* / Q000494:pharmacology; D000994:Antitrichomonal Agents / Q000138:chemical synthesis* / Q000494:pharmacology; D055598:Chemical Phenomena; D002621:Chemistry; D004748:Entamoeba histolytica / Q000187:drug effects; D007093:Imidazoles / Q000138:chemical synthesis* / Q000494:pharmacology; D014246:Trichomonas vaginalis / Q000187:drug effects
chemical_list: D000981:Antiprotozoal Agents; D000994:Antitrichomonal Agents; D007093:Imidazoles
vernacular_title: Synthèse de nouveaus dérivés dihétérocycliques de l'imidazole à activité antiparasitaire.