title: Synthesis of 2-[1,2-dihydropyrazol-4-yl]-1,3,4-thiadiazole derivatives as potential antimicrobial agents.
abstract: The synthesis of some 2-[1,2-dihydropyrazol-4-yl]-1,3,4-thiadiazole derivatives is performed by reacting 4-dithiocarboxylic acid hydrazides of 3-amino-1,2-dihydro-5H-pyrazol-5-one and 3-amino-1,2-dihydro-1-methyl-5H-pyrazol-5-one with carboxylic acid derivatives. The unusual behaviour of 3-amino-1,2-dihydro-1-methyl-5H-pyrazol-5-one towards acetylating agents is described. The antimicrobial activity of some 2-[1,2-dihydropyrazol-4-yl]-1,3,4-thiadiazole derivatives is tested in a preliminary screening.
authors.affiliation: Dipartimento di Scienze Farmaceutiche, Università di Firenze, Italy.
authors.forename: G
authors.initials: G
authors.lastname: Auzzi
authors.forename: F
authors.initials: F
authors.lastname: Bruni
authors.forename: M
authors.initials: M
authors.lastname: Clauser
authors.forename: G
authors.initials: G
authors.lastname: Ciciani
authors.forename: A
authors.initials: A
authors.lastname: Costanzo
authors.forename: L P
authors.initials: LP
authors.lastname: Pecori Vettori
authors.forename: R
authors.initials: R
authors.lastname: Donato
mesh_terms: D000900:Anti-Bacterial Agents / Q000138:chemical synthesis*; D001419:Bacteria / Q000187:drug effects; D055598:Chemical Phenomena; D002621:Chemistry; D008826:Microbial Sensitivity Tests; D011720:Pyrazoles / Q000138:chemical synthesis* / Q000494:pharmacology; D013830:Thiadiazoles / Q000138:chemical synthesis* / Q000494:pharmacology
chemical_list: D000900:Anti-Bacterial Agents; D011720:Pyrazoles; D013830:Thiadiazoles