title: [A new lignanolide from the leaves of Daphne genkwa].
abstract: A new (-)-4-oxo-2,6-bis-(3',4'-methylenedioxy phenyl)-3, 7-dioxabicyclo[3, 3, 0] octane lignan, genkdaphin was isolated from the leaves of Daphne genkwa Sieb. et Zucc. mp 118-119.5 degrees C, C20H16O7 (HRMS, 368.08631, M+), [alpha]27D-64.8 degrees (c 0.5, CHCl3). On the basis of UV, IR, MS, 1H and 13CNMR spectral analysis, the structure of the genkdaphin has been established as (-)-4-oxosesamin.
authors.affiliation: Henan Institute of Chemistry, Zhengzhou.
authors.forename: M T
authors.initials: MT
authors.lastname: Wang
authors.forename: Y Z
authors.initials: YZ
authors.lastname: Li
authors.forename: T Z
authors.initials: TZ
authors.lastname: Zhao
authors.forename: C R
authors.initials: CR
authors.lastname: Ji
authors.forename: W S
authors.initials: WS
authors.lastname: Feng
authors.forename: Y Z
authors.initials: YZ
authors.lastname: Liu
mesh_terms: D001643:Bridged Bicyclo Compounds / Q000737:chemistry / Q000302:isolation & purification*; D019086:Bridged Bicyclo Compounds, Heterocyclic; D004148:Dioxolanes / Q000737:chemistry / Q000302:isolation & purification*; D004365:Drugs, Chinese Herbal / Q000737:chemistry*; D010946:Plants, Medicinal / Q000032:analysis*
chemical_list: D001643:Bridged Bicyclo Compounds; D019086:Bridged Bicyclo Compounds, Heterocyclic; D004148:Dioxolanes; D004365:Drugs, Chinese Herbal; C069465:genkdaphine