title: Micrandilactone A: a novel triterpene from Schisandra micrantha.
abstract: [structure: see text] A novel nortriterpene, micrandilactone A, was isolated from the medicinal plant Schisandra micrantha. This is the first example of an unusual, natural, highly oxidized cycloartane skeleton with a biosynthetically modified eight-membered ring D isolated from the family Schisandraceae.
authors.affiliation: State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, PR China.
authors.forename: Rong-Tao
authors.initials: RT
authors.lastname: Li
authors.forename: Qin-Shi
authors.initials: QS
authors.lastname: Zhao
authors.forename: Sheng-Hong
authors.initials: SH
authors.lastname: Li
authors.forename: Quan-Bin
authors.initials: QB
authors.lastname: Han
authors.forename: Han-Dong
authors.initials: HD
authors.lastname: Sun
authors.forename: Yang
authors.initials: Y
authors.lastname: Lu
authors.forename: Li-Li
authors.initials: LL
authors.lastname: Zhang
authors.forename: Qi-Tai
authors.initials: QT
authors.lastname: Zheng
mesh_terms: D007783:Lactones / Q000737:chemistry* / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D008958:Models, Molecular; D008968:Molecular Conformation; D015394:Molecular Structure; D032141:Schisandra / Q000737:chemistry*; D014315:Triterpenes / Q000737:chemistry* / Q000302:isolation & purification*
chemical_list: D007783:Lactones; D014315:Triterpenes; C476501:micrandilactone A