title: Phytochemical Study of Eryngium triquetrum: Isolation of Polyacetylenes and Lignans.
abstract: Phytochemical investigation of the ethyl acetate extract from the aerial parts ofEryngium triquetrumVahl resulted in the isolation of new polyacetylenes, triquetridiol (6) andtrans-epoxy-triquetrol (7a/7b, diastereomeric mixture), and the lignan demethoxy carolignan Z (8a/8b,erythro/threopair), together with a series of related known metabolites. Additionally, some already reported phenolic and flavonoid compounds were also identified in the extract. Structural elucidation of the new compounds was made by spectroscopic analysis, mainly NMR and mass spectrometry. To the best of our knowledge, this is the first report of polyacetylenes and lignans fromE. triquetrum.
authors.affiliation: Laboratoire de Chimie et Chimie de l'environnement (L. C. C. E.), Faculté des Sciences de la Matière, Département de Chimie, Université de Batna 1, Batna, Algérie.
authors.forename: Fouzia
authors.initials: F
authors.lastname: Bouzergoune
authors.affiliation: Consiglio Nazionale delle Ricerche (CNR), Istituto di Chimica Biomolecolare (ICB), Pozzuoli, Napoli, Italy.
authors.forename: Maria Letizia
authors.initials: ML
authors.lastname: Ciavatta
authors.affiliation: Laboratoire de Chimie et Chimie de l'environnement (L. C. C. E.), Faculté des Sciences de la Matière, Département de Chimie, Université de Batna 1, Batna, Algérie.
authors.forename: Fatma
authors.initials: F
authors.lastname: Bitam
authors.affiliation: Consiglio Nazionale delle Ricerche (CNR), Istituto di Chimica Biomolecolare (ICB), Pozzuoli, Napoli, Italy.
authors.forename: Marianna
authors.initials: M
authors.lastname: Carbone
authors.affiliation: Laboratoire de Chimie et Chimie de l'environnement (L. C. C. E.), Faculté des Sciences de la Matière, Département de Chimie, Université de Batna 1, Batna, Algérie.
authors.forename: Mohamed Cherif
authors.initials: MC
authors.lastname: Aberkane
authors.affiliation: Consiglio Nazionale delle Ricerche (CNR), Istituto di Chimica Biomolecolare (ICB), Pozzuoli, Napoli, Italy.
authors.forename: Margherita
authors.initials: M
authors.lastname: Gavagnin
mesh_terms: D031049:Eryngium / Q000737:chemistry*; D017705:Lignans / Q000737:chemistry / Q000302:isolation & purification*; D053279:Polyynes / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D017705:Lignans; D053279:Polyynes