Fern constituents: triterpenoids from Adiantum capillus-veneris.

@article{Nakane2002FernCT,
  title={Fern constituents: triterpenoids from Adiantum capillus-veneris.},
  author={Takahisa Nakane and Y Maeda and H Ebihara and Yōko Arai and Kazuo Masuda and Akihito Takano and Hiroyuki Ageta and Kenji Shiojima and Shao-Qing Cai and Osama Bashir Abdel-Halim},
  journal={Chemical \& pharmaceutical bulletin},
  year={2002},
  volume={50 9},
  pages={
          1273-5
        }
}
Two new migrated hopane triterpenoids, viz. 4alpha-hydroxyfilican-3-one and fern-9(11)-en-12beta-ol, and olean-18-en-3-one and olean-12-en-3-one as the first example of oleanane compounds from Adiantum ferns were isolated along with many other known triterpenoids from Adiantum capillus-veneris of China and Egypt. Their structures were elucidated by spectroscopic analyses. 

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