title: In vitro cytotoxic elemanolides from Vernonia lasiopus.
abstract: Two new elemanolides, epivernodalol and lasiopulide, were isolated after chromatographic separation of the alcoholic extract of the dried aerial parts of the Vernonia lasiopus. These elemanolides are new C-10 epimers of the sesquiterpene lactones vernodalol and demethylacroylated vernodalol isolated from other species of Vernonia. Both elemanolides showed in vitro cytotoxicity against human cancer cell lines in culture. This is the first report of isolation and cytotoxic activity of the two elemanolides from V. lasiopus.
authors.forename: J L
authors.initials: JL
authors.lastname: Koul
authors.forename: S
authors.initials: S
authors.lastname: Koul
authors.forename: C
authors.initials: C
authors.lastname: Singh
authors.forename: S C
authors.initials: SC
authors.lastname: Taneja
authors.forename: M
authors.initials: M
authors.lastname: Shanmugavel
authors.forename: H
authors.initials: H
authors.lastname: Kampasi
authors.forename: A K
authors.initials: AK
authors.lastname: Saxena
authors.forename: G N
authors.initials: GN
authors.lastname: Qazi
mesh_terms: D000972:Antineoplastic Agents, Phytogenic / Q000008:administration & dosage / Q000737:chemistry / Q000494:pharmacology* / Q000627:therapeutic use; D019073:HT29 Cells / Q000187:drug effects; D006801:Humans; D020128:Inhibitory Concentration 50; D009682:Magnetic Resonance Spectroscopy; D008517:Phytotherapy; D010936:Plant Extracts / Q000008:administration & dosage / Q000737:chemistry / Q000494:pharmacology* / Q000627:therapeutic use; D012717:Sesquiterpenes / Q000008:administration & dosage / Q000302:isolation & purification / Q000494:pharmacology*; D035741:Vernonia
chemical_list: D000972:Antineoplastic Agents, Phytogenic; D010936:Plant Extracts; D012717:Sesquiterpenes; C473638:epivernodalol; C473639:lasiopulide