Five new withanolides from Tacca plantaginea.
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.
Liu
Hai-Yang
HY
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.
Ni
Wei
W
Xie
Bai-Bo
BB
Zhou
Ling-Yun
LY
Hao
Xiao-Jiang
XJ
Wang
Xin
X
Chen
Chang-Xiang
CX
D027743:Dioscoreaceae / Q000737:chemistry*; D004875:Ergosterol / Q000031:analogs & derivatives* / Q000737:chemistry* / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure
D004875:Ergosterol