1 State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, P.R. China.
A minor new withanolide, named plantagiolide F, was isolated from the whole plant of Tacca plantaginea (Hance). The structure of plantagiolide F was elucidated on the basis of spectroscopic methods including extensive 1- and 2-D NMR experiments.