Sesquiterpenoids and other constituents from the flower buds of Tussilago farfara.

@article{Liu2011SesquiterpenoidsAO,
  title={Sesquiterpenoids and other constituents from the flower buds of Tussilago farfara.},
  author={Lin Liu and Junli Yang and Yan-Ping Shi},
  journal={Journal of Asian natural products research},
  year={2011},
  volume={13 10},
  pages={920-9}
}
One new norsesquiterpenoid, namely tussfarfarin A (1), and four new artifacts resulting from extraction procedure, namely tussfarfarin B (2), 6-(1-ethoxyethyl)-2,2-dimethylchroman-4-ol (3), 5-ethoxymethyl-1H-pyrrole-2-carbaldehyde (4), and 3β-hydroxy-7α-ethoxy-24β-ethylcholest-5-ene (5), along with 18 known compounds, were isolated from the flower buds of Tussilago farfara. Their structures were elucidated by extensive spectroscopic analysis.