title: Dineolignans of 3-O-4' diphenyl ether-type from fruits of Magnolia obovata.
abstract: Seven dineolignans of the 3-O-4' diphenyl ether-type (obovatalignans C-I, respectively), were isolated from fruits of Magnolia obovata through repeated silica gel (SiO2), octadecyl SiO2, and Sep-Pak chromatographies. Their chemical structures were determined based on various spectroscopic methods including NMR, HR-MS, IR, specific rotation, and CD spectrometry. Especially, compounds 1-5 include the relatively rare 1,4-benzodioxane ring moiety in the molecular structure.
authors.affiliation: Department of Oriental Medicine Biotechnology, Kyung Hee University, Yongin, 446-701, Republic of Korea.
authors.forename: Kyeong-Hwa
authors.initials: KH
authors.lastname: Seo
authors.affiliation: Department of Herbal Crop Research, National Institute of Horticultural and Herbal Science, RDA, Eumseong, 369-873, Republic of Korea.
authors.forename: Dae-Young
authors.initials: DY
authors.lastname: Lee
authors.affiliation: Department of Oriental Medicine Biotechnology, Kyung Hee University, Yongin, 446-701, Republic of Korea.
authors.forename: Yeong-Geun
authors.initials: YG
authors.lastname: Lee
authors.affiliation: Department of Oriental Medicine Biotechnology, Kyung Hee University, Yongin, 446-701, Republic of Korea. Electronic address: nibaek@khu.ac.kr.
authors.forename: Nam-In
authors.initials: NI
authors.lastname: Baek
mesh_terms: D005638:Fruit / Q000737:chemistry*; D017705:Lignans / Q000737:chemistry / Q000302:isolation & purification*; D031566:Magnolia / Q000737:chemistry*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D010647:Phenyl Ethers / Q000737:chemistry / Q000302:isolation & purification*; D056910:Republic of Korea; D012822:Silicon Dioxide / Q000737:chemistry
chemical_list: D017705:Lignans; D010647:Phenyl Ethers; D012822:Silicon Dioxide
keywords: 1,4-benzodioxane type neolignan; 3-O-4′ diphenyl ether-type neolignans; Dineolignan; Magnolia obovate; Magnoliaceae; Obovatalignan