title: Three new compounds from the stem bark of Juglans mandshurica.
abstract: Three new compounds, 3,6-dihydroxy-4,5-dimethoxy-1,8-naphalic anhydride (1), 3,4,5,6-tetrahydroxy-1,8-naphalic anhydride (2), and methyl (7E,9E)-6,11-dioxononadeca-7,9-dienoate (3), were isolated from the stem bark of Juglans mandshurica. Their structures were elucidated on the basis of spectroscopic evidence, including 1D and 2D NMR, HR-TOF-MS, and by comparison with the literature data.
authors.affiliation: a National Engineering Laboratory for Druggable Gene and Protein Screening, Northeast Normal University , ChangChun 130024 , China.
authors.forename: Hua
authors.initials: H
authors.lastname: Lin
authors.forename: Yu-Wei
authors.initials: YW
authors.lastname: Zhang
authors.forename: Ying
authors.initials: Y
authors.lastname: Hua
authors.forename: Yong-Li
authors.initials: YL
authors.lastname: Bao
authors.forename: Yin
authors.initials: Y
authors.lastname: Wu
authors.forename: Lu-Guo
authors.initials: LG
authors.lastname: Sun
authors.forename: Chun-Lei
authors.initials: CL
authors.lastname: Yu
authors.forename: Yan-Xin
authors.initials: YX
authors.lastname: Huang
authors.forename: En-Bo
authors.initials: EB
authors.lastname: Wang
authors.forename: Hong-Yu
authors.initials: HY
authors.lastname: Jiang
authors.forename: Yu-Xin
authors.initials: YX
authors.lastname: Li
mesh_terms: D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification*; D005231:Fatty Acids, Unsaturated / Q000737:chemistry / Q000302:isolation & purification*; D031324:Juglans / Q000737:chemistry*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D043803:Phenalenes / Q000737:chemistry / Q000302:isolation & purification*; D024301:Plant Bark / Q000737:chemistry; D018547:Plant Stems / Q000737:chemistry
chemical_list: D004365:Drugs, Chinese Herbal; D005231:Fatty Acids, Unsaturated; D043803:Phenalenes
keywords: Juglandaceae; Juglans mandshurica; fatty acid ester; naphalic anhydride