title: Diterpenoids and triterpenoids from Euphorbia retusa.
abstract: Six new ent-abietane lactones (1-6), three new esterified tetracyclic triterpenes (7-9), and seven known diterpenoids and triterpenoids were isolated from the roots of Euphorbia retusa. Their structures were elucidated by means of spectroscopic studies including 1D and 2D NMR, mass spectrometry, chemical transformation, and comparison with literature data.
authors.affiliation: Departement de Chimie, Universite de Batna, Batna 05000, Algeria.
authors.forename: Hamada
authors.initials: H
authors.lastname: Haba
authors.forename: Catherine
authors.initials: C
authors.lastname: Lavaud
authors.forename: Abdulmagid Alabdul
authors.initials: AA
authors.lastname: Magid
authors.forename: Mohammed
authors.initials: M
authors.lastname: Benkhaled
mesh_terms: D000462:Algeria; D004224:Diterpenes / Q000737:chemistry / Q000302:isolation & purification*; D028481:Euphorbia / Q000737:chemistry*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D018517:Plant Roots / Q000737:chemistry; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D004224:Diterpenes; D014315:Triterpenes