Constituents of Trigonostemon chinensis.

  title={Constituents of Trigonostemon chinensis.},
  author={Qin Zhu and Chunping Tang and Chang-qiang Ke and Xi‐qiang Li and Jin Liu and Li-She Gan and Hans-Christoph Weiss and Ernst Rudolf F. Gesing and Yang Ye},
  journal={Journal of natural products},
  volume={73 1},
Phytochemical investigation on the stem bark and wood of Trigonostemon chinensis led to the isolation of four new dinorditerpenoids, trigonostemons A-D (1, 3, 5, 6), a new phenanthrenone, trigonostemon E (7), and a new bisindole alkaloid, trigonostemon F (8). The structures were established by extensive spectroscopic methods. The absolute configurations of 1-6 were determined by X-ray crystallography, circular dichroism, quantum chemical TDDFT calculations, and chemical transformations. The… 

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