title: Cytotoxic lupane-type triterpenoids from Acacia mellifera.
abstract: One new and eight previously described lupane-type metabolites were isolated for the first time from Acacia mellifera (Leguminosae). Based on spectral analyses, the structure of the new compound was elucidated as 28-hydroxy-3-oxo-lup-20-(29)-en-30-al (1), while the known compounds were identified as 3-oxo-lup-20-(29)-en-30-al (2), 3-hydroxy-lup-20-(29)-en-30-al (3), 28-hydroxy-lup-20-(29)-en-3-one (4), lupenone (5), lupeol (6), betulin (7), betulinic acid (8), and betulonic acid (9). Metabolites 2, 3, and 4 are reported for the first time in the Leguminosae family. The cytotoxicity of the isolated metabolites was evaluated on the NSCLC-N6 cell line, derived from a human non-small-cell bronchopulmonary carcinoma. Compounds 1 and 3 exhibited significant levels of activity.
authors.affiliation: University of Athens, Department of Pharmacy, Division of Pharmacognosy and Chemistry of Natural Products, Panepistimiopolis Zografou, Athens 157 71, Greece.
authors.forename: Charles
authors.initials: C
authors.lastname: Mutai
authors.forename: Dennis
authors.initials: D
authors.lastname: Abatis
authors.forename: Constantinos
authors.initials: C
authors.lastname: Vagias
authors.forename: Dimitri
authors.initials: D
authors.lastname: Moreau
authors.forename: Christos
authors.initials: C
authors.lastname: Roussakis
authors.forename: Vassilios
authors.initials: V
authors.lastname: Roussis
mesh_terms: D000045:Acacia / Q000737:chemistry*; D000972:Antineoplastic Agents, Phytogenic / Q000737:chemistry / Q000494:pharmacology*; D045744:Cell Line, Tumor; D004354:Drug Screening Assays, Antitumor; D006801:Humans; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D014315:Triterpenes / Q000737:chemistry / Q000494:pharmacology*; D053978:Pentacyclic Triterpenes
chemical_list: D000972:Antineoplastic Agents, Phytogenic; D014315:Triterpenes; C480546:lupane; D053978:Pentacyclic Triterpenes