Four new 6-nor5(6-->7)abeo-abietane type diterpenes and antitumoral cytotoxic diterpene constituents from the bark of Taiwania cryptomerioides.

@article{Chang2005FourN6,
  title={Four new 6-nor5(6-->7)abeo-abietane type diterpenes and antitumoral cytotoxic diterpene constituents from the bark of Taiwania cryptomerioides.},
  author={C I Chang and J. Y. Chang and Ching-Chuan Kuo and Wen-yu Pan and Yueh-Hsiung Kuo},
  journal={Planta medica},
  year={2005},
  volume={71 1},
  pages={72-6}
}
Four new 6-nor-5(6-->7) abeo-abietane type diterpenes designated as taiwaniaquinone G, taiwaniaquinone H, taiwaniaquinol E and taiwaniaquinol F and eight known diterpenes, taiwaniaquinones A (5), D (6), E, F (8), and taiwaniaquinols A (9), B, C (11), D (12) were isolated from the bark of Taiwania cryptomerioides. Their structures were elucidated on the basis of spectroscopic studies. These twelve diterpenes were evaluated for in vitro antitumoral cytotoxic activity. The result demonstrated that… CONTINUE READING