Sesquiterpene lactones from Carpesium abrotanoides.

@article{Wang2009SesquiterpeneLF,
  title={Sesquiterpene lactones from Carpesium abrotanoides.},
  author={Fei Wang and Ku Yang and Fu-cai Ren and Jikai Liu},
  journal={Fitoterapia},
  year={2009},
  volume={80 1},
  pages={21-4}
}
Phytochemical study on the ethanol extract of the aerial parts of Carpesium abrotanoides led to the isolation of two new sesquiterpene lactones, carabrolactone A (1) and carabrolactone B (2). Their structures were elucidated on the basis of extensive spectroscopic analysis.