title: Thiophenes from Echinops latifolius.
abstract: Six thiophenes were isolated and purified from ethanol extract of the roots of Echinops latifolius Tausch. Their structures were identified on the basis of spectral data. Among them, 5-(3-hydroxmethyl-3-isovaleroyloxyprop-1-ynyl)-2,2'-bithiophene (6) is a new compound, and 5-(3-hydroxy-4-isovaleroyloxybut-1-ynyl)-2,2'-bithiophene (5) was isolated from this plant for the first time.
authors.affiliation: Research Department of Natural Medicine, Shenyang Pharmaceutical University, Shenyang, 110016, China.
authors.forename: Y
authors.initials: Y
authors.lastname: Wang
authors.forename: X
authors.initials: X
authors.lastname: Li
authors.forename: D-L
authors.initials: DL
authors.lastname: Meng
authors.forename: Z-L
authors.initials: ZL
authors.lastname: Li
authors.forename: P
authors.initials: P
authors.lastname: Zhang
authors.forename: J
authors.initials: J
authors.lastname: Xu
mesh_terms: D002087:Butyrates / Q000737:chemistry* / Q000302:isolation & purification; D002681:China; D031182:Echinops Plant / Q000737:chemistry*; D000431:Ethanol; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D010936:Plant Extracts / Q000737:chemistry; D018517:Plant Roots / Q000737:chemistry*; D010946:Plants, Medicinal / Q000737:chemistry*; D013876:Thiophenes / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: C518090:5-(3-hydroxymethyl-3-isovaleroyloxyprop-1-ynyl)-2,2'-bithiophene; D002087:Butyrates; D010936:Plant Extracts; D013876:Thiophenes; D000431:Ethanol