Constituents from the stems of Goniothalamus griffithii.

@article{Mu2003ConstituentsFT,
  title={Constituents from the stems of Goniothalamus griffithii.},
  author={Qing Mu and Wei Dong Tang and Ruo Yan Liu and Chao Li and Li Guang Lou and Han Dong Sun and Chang Qi Hu},
  journal={Planta medica},
  year={2003},
  volume={69 9},
  pages={826-30}
}
A new cyclopeptide, grifficyclocin A (1), and a new aporphine alkaloid, griffinin (2) were isolated together with two known styryllactones from the stems of Goniothalamus griffithii. Their structures were identified spectroscopically and chemically. Among them, the griffinin (2) was isolated as the enol form in two tautomers, and the two known styryllactones, goniothalamin (3) and 8- O-acetylgoniotriol (4), showed selective in vitro antitumor activities.