title: Lignans from Chilean propolis.
abstract: Three new (1, 3, 4) and two known lignans (2 and 5) were isolated from Chilean propolis. Compound 1 was identified as a trimeric coniferyl alcohol acetate and 3 as the diastereomer of the dimeric coniferyl alcohol acetate 2. Compound 4 was identified as a dihydrobenzofuran lignan aldehyde, which was isolated together with the related known acetate 5.
authors.affiliation: Department of Pharmacology and Toxicology, College of Pharmacy, The University of Arizona, Tucson, Arizona 85721, USA.
authors.forename: S
authors.initials: S
authors.lastname: Valcic
authors.forename: G
authors.initials: G
authors.lastname: Montenegro
authors.forename: B N
authors.initials: BN
authors.lastname: Timmermann
mesh_terms: D002677:Chile; D017705:Lignans / Q000737:chemistry / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D008968:Molecular Conformation; D011429:Propolis / Q000737:chemistry*; D016339:Spectrometry, Mass, Fast Atom Bombardment; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet
chemical_list: D017705:Lignans; D011429:Propolis