Matsutakone and Matsutoic Acid, Two (Nor)steroids with Unusual Skeletons from the Edible Mushroom Tricholoma matsutake.

@article{Zhao2017MatsutakoneAM,
  title={Matsutakone and Matsutoic Acid, Two (Nor)steroids with Unusual Skeletons from the Edible Mushroom Tricholoma matsutake.},
  author={Zhen-Zhu Zhao and Heping Chen and Bin Wu and Ling Zhang and Zheng-Hui Li and Tao Feng and Jikai Liu},
  journal={The Journal of organic chemistry},
  year={2017},
  volume={82 15},
  pages={
          7974-7979
        }
}
Matsutakone (1), a novel sterol with an unprecedented polycyclic ring system, together with a new norsteroid matsutoic acid (2) were isolated from the fruiting bodies of Tricholoma matsutake. Their structures and absolute configurations were assigned by extensive spectroscopic analyses and computational methods. Bioassay results showed that compounds 1 and 2 exhibited inhibitory activities against acetylcholinesterase (IC50 20.9 μM for 1). 
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