title: New sesquiterpenes from Euonymus europaeus (Celastraceae).
abstract: A new sesquiterpene evoninate alkaloid (1), and two sesquiterpenes (2, 3) with a dihydro-beta-agarofuran skeleton, along with three known sesquiterpenes (4-6), were isolated from the seeds of Euonymus europaeus. Their structures were elucidated by high resolution mass analysis, and one- and two-dimensional (1D and 2D) NMR spectroscopy, including homonuclear and heteronuclear correlation [correlation spectroscopy (COSY), rotating frame Overhauser enhancement spectroscopy (ROESY), heteronuclear single quantum coherence (HSQC), and heteronuclear multiple bond correlation (HMBC)] experiments.
authors.affiliation: Instituto Universitario de Bio-Orgánica Antonio González, Universidad de La Laguna, Tenerife, Canary Islands, Spain.
authors.forename: Charles
authors.initials: C
authors.lastname: Descoins
authors.forename: Isabel López
authors.initials: IL
authors.lastname: Bazzocchi
authors.forename: Angel Gutiérrez
authors.initials: AG
authors.lastname: Ravelo
mesh_terms: D029756:Euonymus / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D012717:Sesquiterpenes / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D012717:Sesquiterpenes