title: Synthesis and antineoplastic activity of new 4-diazopyrazole derivatives.
abstract: Several new 4-diazopyrazole derivatives were synthesized by reaction of 1-(R-substituted)phenyl-3-methyl-5-benzamidopyrazoles with a sevenfold excess of nitrous acid in acetic media. The compounds were tested at 20 microM concentration for their antineoplastic activity in vitro against Raji (human Burkitt lymphoma), K562 (human chronic myelogenous leukemia) and U937 (human histiocytic lymphoma) cell lines. They showed a percent of growth inhibition in the range 23.4-100%.
authors.affiliation: Dipartimento di Chimica e Tecnologie Farmaceutiche, Università di Palermo.
authors.forename: G
authors.initials: G
authors.lastname: Daidone
authors.forename: B
authors.initials: B
authors.lastname: Maggio
authors.forename: D
authors.initials: D
authors.lastname: Raffa
authors.forename: D
authors.initials: D
authors.lastname: Schillaci
authors.forename: S
authors.initials: S
authors.lastname: Plescia
mesh_terms: D000970:Antineoplastic Agents / Q000138:chemical synthesis* / Q000494:pharmacology; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D004354:Drug Screening Assays, Antitumor; D006801:Humans; D011720:Pyrazoles / Q000138:chemical synthesis* / Q000494:pharmacology; D014407:Tumor Cells, Cultured
chemical_list: D000970:Antineoplastic Agents; D011720:Pyrazoles