title: Five new withanolides from Tacca plantaginea.
abstract: Five new withanolides named plantagiolides A-E (1, 3-6), together with a known withanolide glucoside, chantriolide A (2) were isolated from the whole plants of Tacca plantaginea (HANCE). Their structures were elucidated by means of spectroscopic methods including extensive 1D and 2D-NMR techniques.
authors.affiliation: State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences; Kunming 650204, Yunnan, People's Republic of China.
authors.forename: Hai-Yang
authors.initials: HY
authors.lastname: Liu
authors.forename: Wei
authors.initials: W
authors.lastname: Ni
authors.forename: Bai-Bo
authors.initials: BB
authors.lastname: Xie
authors.forename: Ling-Yun
authors.initials: LY
authors.lastname: Zhou
authors.forename: Xiao-Jiang
authors.initials: XJ
authors.lastname: Hao
authors.forename: Xin
authors.initials: X
authors.lastname: Wang
authors.forename: Chang-Xiang
authors.initials: CX
authors.lastname: Chen
mesh_terms: D027743:Dioscoreaceae / Q000737:chemistry*; D004875:Ergosterol / Q000031:analogs & derivatives* / Q000737:chemistry* / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure
chemical_list: D004875:Ergosterol