title: Three new highly acylated 3,4-seco-grayanane diterpenoids from the fruits of Pieris formosa.
abstract: Phytochemical investigation on the fruits of Pieris formosa resulted in the isolation of three new highly acylated 3,4-seco-grayanane diterpenoids, pierisformotoxins E-G (1-3). Their structures were elucidated on the basis of extensive spectroscopic analysis, including 1D-, 2D-NMR, electrospray ionization-mass spectra (ESI-MS) and high resolution (HR)-MS.
authors.affiliation: The College of Life Science and Technology, Kunming University of Science and Technology.
authors.forename: Zhao-Yuan
authors.initials: ZY
authors.lastname: Wu
authors.forename: Yuan-Dan
authors.initials: YD
authors.lastname: Li
authors.forename: Gui-Sheng
authors.initials: GS
authors.lastname: Wu
authors.forename: Huai-Rong
authors.initials: HR
authors.lastname: Luo
authors.forename: Hong-Mei
authors.initials: HM
authors.lastname: Li
authors.forename: Rong-Tao
authors.initials: RT
authors.lastname: Li
mesh_terms: D004224:Diterpenes / Q000737:chemistry* / Q000302:isolation & purification; D029791:Ericaceae / Q000737:chemistry*; D005638:Fruit / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D008968:Molecular Conformation
chemical_list: D004224:Diterpenes; C559413:pierisformotoxin E; C559414:pierisformotoxin F; C559415:pierisformotoxin G