title: Cytotoxic isoflavones from Erythrina indica.
abstract: Bioassay-directed fractionation of the CH(2)Cl(2)-MeOH (1:1) extract of the stem bark of Erythrina indica, has resulted in the isolation of two new isoflavone derivatives named indicanines D and E together with 11 known compounds including: six isoflavones (genistein, wighteone, alpinumisoflavone, dimethylalpinumisoflavone, 8-prenyl erythrinin C, and erysenegalensein E), one cinnamate (erythrinassinate B), two pentacyclic triterpenes (oleanolic acid and erythrodiol), and two phytosterols (stigmasterol and its 3-O-beta-D-glucopyranoside). The structures of the new compounds were elucidated by means of spectroscopic analysis. The in vitro cytocidal activity against KB cells of some of the isolated compounds is also reported.
authors.affiliation: Department of Organic Chemistry, Faculty of Science University of Yaounde I, PO Box 812 Yaounde, Cameroon. ankengf@uycdc.uninet.cm
authors.forename: A E
authors.initials: AE
authors.lastname: Nkengfack
authors.forename: A G
authors.initials: AG
authors.lastname: Azebaze
authors.forename: A K
authors.initials: AK
authors.lastname: Waffo
authors.forename: Z T
authors.initials: ZT
authors.lastname: Fomum
authors.forename: M
authors.initials: M
authors.lastname: Meyer
authors.forename: F R
authors.initials: FR
authors.lastname: van Heerden
mesh_terms: D000972:Antineoplastic Agents, Phytogenic / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D004354:Drug Screening Assays, Antitumor; D007887:Fabaceae / Q000737:chemistry*; D006801:Humans; D007529:Isoflavones / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D013057:Spectrum Analysis; D014407:Tumor Cells, Cultured
chemical_list: D000972:Antineoplastic Agents, Phytogenic; D007529:Isoflavones