title: Lignans and polyacetylenes from bupleurum acutifolium
abstract: Two new lignans (R,Z)-3-(3,4-dimethoxybenzyl)-2-(3, 4-dimethoxybenzylidene)-gamma-butyrolactone (1) and (2R, 3S)-2-acetoxy-2,3-bis(3,4-dimethoxybenzyl)-gamma-butyrolactone (2), and four new polyacetylenes, (2Z,8E,10E)-heptadeca-2,8,10-triene-4, 6-diyn-1-ol (3), (2E,9Z)-octadeca-2,9-diene-4,6-diyne-1,18-diol (4), (2E,9Z)-18-hydroxy-octadeca-2,9-diene-4,6-diyn-1-yl acetate (5), and (2E,9Z)-1-hydroxy-octadeca-2,9-diene-4,6-diyn-18-yl acetate (6), were isolated and identified from the hexane extract of aerial parts of Bupleurum acutifolium Boiss. Their structures were elucidated by NMR and MS analyses.
authors.affiliation: Instituto de Biotecnologia, Departamento de Quimica Organica, Facultad de Ciencias, Universidad de Granada, Campus de Fuentenueva s/n, 18071 Granada, Spain, and Laboratoire de Chemie Bioorganique et Analytique, Faculte des Sciences et Technique.
authors.initials: AF
authors.lastname: Barrero
authors.initials: MM
authors.lastname: Herrador
authors.initials: M
authors.lastname: Akssira
authors.initials: P
authors.lastname: Arteaga
authors.initials: JL
authors.lastname: Romera