title: Synthesis and biological evaluation of a series of substituted pyrazolo[3,4-d]-1,2,3-triazoles and pyrazolo[3,4-d]oxazoles.
abstract: In view of the biological relevance of triazole-based heterocyclic structures as antifungal, antiviral, and antitumor agents, we have synthesized a series of substituted pyrazolo[3,4-d]-1,2,3-triazoles (2e-h, 2j, 4b) which we evaluated for their cytostatic and antiviral (HIV-1 included) activity and for their capability to inhibit the multiplication of various human pathogenic fungi and bacteria. Moreover, the biological activities of a few compounds, namely pyrazolo[3,4-d]oxazoles (3a-e) and pyrazolo[3,4-d]-1,2,3-triazoles (2a-d, 4a, 5), previously obtained by us but not investigated for their biological activity, were also studied. Only compounds 3a-e were endowed with a significative antiproliferative activity on the human lymphoblastoid cell line MT-4 cells. All pyrazole derivatives proved ineffective in protecting cell cultures against the HIV-1-induced cytopathogenicity, and none of the compounds was active against the bacteria and fungi tested.
authors.affiliation: Dipartimento di Scienze Farmaceutiche, Università di Ferrara, Italy.
authors.forename: C B
authors.initials: CB
authors.lastname: Vicentini
authors.forename: S
authors.initials: S
authors.lastname: Manfredini
authors.forename: M
authors.initials: M
authors.lastname: Manfrini
authors.forename: R
authors.initials: R
authors.lastname: Bazzanini
authors.forename: C
authors.initials: C
authors.lastname: Musiu
authors.forename: M
authors.initials: M
authors.lastname: Putzolu
authors.forename: G
authors.initials: G
authors.lastname: Perra
authors.forename: M E
authors.initials: ME
authors.lastname: Marongiu
mesh_terms: D000900:Anti-Bacterial Agents / Q000138:chemical synthesis* / Q000494:pharmacology; D019380:Anti-HIV Agents / Q000138:chemical synthesis / Q000494:pharmacology; D000935:Antifungal Agents / Q000138:chemical synthesis / Q000494:pharmacology; D001419:Bacteria / Q000187:drug effects; D006801:Humans; D008826:Microbial Sensitivity Tests; D010080:Oxazoles / Q000138:chemical synthesis* / Q000494:pharmacology; D014230:Triazoles / Q000138:chemical synthesis* / Q000494:pharmacology
chemical_list: D000900:Anti-Bacterial Agents; D019380:Anti-HIV Agents; D000935:Antifungal Agents; D010080:Oxazoles; D014230:Triazoles