title: A new 6,9'-cyclolignan from Syringa pinnatifolia.
abstract: A new lignan, 4,4'-dihydroxy-3,3'-dimethoxy-6,9'-cycloligna-7,8'-dien-9'-al, was isolated from the stem of Syringa pinnatifolia Hems1. var. alashanensis MA. et S.Q. Zhou (S. pinnatifolia). This is the first report on the structure elucidation of a new compound based on spectroscopic methods including UV, IR, ESI-MS, 1D NMR and 2D NMR techniques.
authors.affiliation: a College of Traditional Mongolian Medicine, Inner Mongolia University for Nationalities , Tongliao 028000 , Inner Mongolia , P.R. China.
authors.forename: Qinghu
authors.initials: Q
authors.lastname: Wang
authors.affiliation: a College of Traditional Mongolian Medicine, Inner Mongolia University for Nationalities , Tongliao 028000 , Inner Mongolia , P.R. China.
authors.forename: Jintao
authors.initials: J
authors.lastname: Bao
authors.affiliation: a College of Traditional Mongolian Medicine, Inner Mongolia University for Nationalities , Tongliao 028000 , Inner Mongolia , P.R. China.
authors.forename: Surina
authors.initials: S
authors.lastname: Han
authors.affiliation: a College of Traditional Mongolian Medicine, Inner Mongolia University for Nationalities , Tongliao 028000 , Inner Mongolia , P.R. China.
authors.forename: Wuliji
authors.initials: W
authors.lastname: Ao
mesh_terms: D017705:Lignans / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D009284:Naphthols / Q000737:chemistry*; D010936:Plant Extracts / Q000737:chemistry; D018547:Plant Stems / Q000737:chemistry; D021241:Spectrometry, Mass, Electrospray Ionization; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet; D031662:Syringa / Q000737:chemistry
chemical_list: D017705:Lignans; D009284:Naphthols; D010936:Plant Extracts
keywords: 4,4′-dihydroxy-3,3′-dimethoxy-6,9′-cycloligna-7,8′-dien-9′-al; HR-ESI-MS; NMR; Syringa pinnatifolia