title: Isoindolo[2,1-c]benzo[1,2,4]triazines: a new ring system with antiproliferative activity.
abstract: A series of isoindolo-benzo-triazines of type 4 was obtained by diazotization of 2-(2-aminoaryl)-1-cyanoisoindoles 3a-j. All the synthesized derivatives were screened by the National Cancer Institute (NCI, Bethesda, USA), for in vitro antitumor activity against a 3-human cancer cell line panel consisting of MCF7 (breast), NCI-H460 (lung), and SF-268 (CNS). Derivatives 4a, f, i, j were selected to be evaluated in the full panel of about 50 human tumor cell lines derived from nine human cancer cell types and showed antiproliferative activity generally in the micromolar range. The most sensitive cell lines were: MOLT-4 and SR of the leukemia subpanel, A549/ATCC and EKVX of the nonsmall cell lung subpanel, COLO-205 of the colon cancer subpanel, LOX IMVI of the Melanoma subpanel, OVCAR-8 of the ovarian cancer subpanel, and MCF7, BT-549 of the breast cancer subpanel.
authors.affiliation: Dipartimento Farmacochimico Tossicologico e Biologico, Università degli Studi di Palermo, Via Archirafi 32, 90123 Palermo, Italy. diana@unipa.it
authors.forename: Patrizia
authors.initials: P
authors.lastname: Diana
authors.forename: Annamaria
authors.initials: A
authors.lastname: Martorana
authors.forename: Paola
authors.initials: P
authors.lastname: Barraja
authors.forename: Antonino
authors.initials: A
authors.lastname: Lauria
authors.forename: Alessandra
authors.initials: A
authors.lastname: Montalbano
authors.forename: Anna Maria
authors.initials: AM
authors.lastname: Almerico
authors.forename: Gaetano
authors.initials: G
authors.lastname: Dattolo
authors.forename: Girolamo
authors.initials: G
authors.lastname: Cirrincione
mesh_terms: D000970:Antineoplastic Agents / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology*; D045744:Cell Line, Tumor; D049109:Cell Proliferation / Q000187:drug effects; D004354:Drug Screening Assays, Antitumor; D006801:Humans; D007211:Indoles / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology*; D015394:Molecular Structure; D009369:Neoplasms / Q000188:drug therapy*; D013237:Stereoisomerism; D013329:Structure-Activity Relationship; D014227:Triazines / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology*
chemical_list: D000970:Antineoplastic Agents; D007211:Indoles; D014227:Triazines