title: A new dihydroflavonol from Pinus sylvestris L.
abstract: A novel dihydroflavonol, C-6,O-7-dimethylaromadendrin, was isolated from a 70% aqueous acetone extract of pine (Pinus sylvestris L.) bark. Its structure was determined by high-resolution negative fast atom bombardment mass spectrometry and NMR spectroscopy. The complete assignment of proton and carbon signals was achieved by 2D NMR experiments: HSQC, HMBC, DQF-COSY and NOESY.
authors.affiliation: Structural Chemistry Group, Department of Chemistry, University of Turku, Vatselankatu 2, FI-20014 Turku, Finland.
authors.forename: Jari
authors.initials: J
authors.lastname: Sinkkonen
authors.forename: Jaana
authors.initials: J
authors.lastname: Liimatainen
authors.forename: Maarit
authors.initials: M
authors.lastname: Karonen
authors.forename: Kalevi
authors.initials: K
authors.lastname: Pihlaja
mesh_terms: D002247:Carbon Isotopes; D044948:Flavonols / Q000737:chemistry* / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy / Q000379:methods* / Q000592:standards; D008968:Molecular Conformation; D041605:Pinus sylvestris / Q000737:chemistry*; D011522:Protons; D012015:Reference Standards; D012016:Reference Values
chemical_list: D002247:Carbon Isotopes; D044948:Flavonols; D011522:Protons