title: 3,5-bis(3'-indolyl)pyrazoles, analogues of marine alkaloid nortopsentin: synthesis and antitumor properties.
abstract: A series of 10 bis-indolylpyrazoles of type 9, 10 were obtained by cyclization of diketones 8 using hydrazine monohydrate or methylhydrazine in refluxing acetic acid/THF. Derivatives 9a,c,d were selected, by the National Cancer Institute (NCI, Bethesda, USA), to be evaluated against the full panel of about 60 human tumor cell lines derived from nine human cancer cell types and showed antiproliferative activity in the micromolar range. In particular, 9d, the most active compound was effective against all the tested cell lines with a GI(50) mean value of 3.23 microM; TGI and LC(50) values were 14.5 and 58.9 microM having positive response on 91% and 41% of the tested cell lines, respectively.
authors.affiliation: Dipartimento Farmacochimico Tossicologico e Biologico, Università degli Studi di Palermo, Via Archirafi 32, Palermo, Italy. diana@unipa.it
authors.forename: Patrizia
authors.initials: P
authors.lastname: Diana
authors.forename: Anna
authors.initials: A
authors.lastname: Carbone
authors.forename: Paola
authors.initials: P
authors.lastname: Barraja
authors.forename: Annamaria
authors.initials: A
authors.lastname: Martorana
authors.forename: Ornella
authors.initials: O
authors.lastname: Gia
authors.forename: Lisa
authors.initials: L
authors.lastname: DallaVia
authors.forename: Girolamo
authors.initials: G
authors.lastname: Cirrincione
mesh_terms: D000470:Alkaloids / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology; 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; D007093:Imidazoles / Q000138:chemical synthesis / Q000737:chemistry* / Q000494:pharmacology*; D007211:Indoles / Q000138:chemical synthesis / Q000737:chemistry* / Q000494:pharmacology*; D011720:Pyrazoles / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*
chemical_list: D000470:Alkaloids; D000970:Antineoplastic Agents; D007093:Imidazoles; D007211:Indoles; D011720:Pyrazoles; C413129:topsentin A