7-Nor-ergosterolide, a pentalactone-containing norsteroid and related steroids from the marine-derived endophytic Aspergillus ochraceus EN-31.

@article{Cui20107NorergosterolideAP,
  title={7-Nor-ergosterolide, a pentalactone-containing norsteroid and related steroids from the marine-derived endophytic Aspergillus ochraceus EN-31.},
  author={Chuan-Ming Cui and Xiao‐Ming Li and Li Meng and Chunshun Li and Cai-guo Huang and Bin‐Gui Wang},
  journal={Journal of natural products},
  year={2010},
  volume={73 11},
  pages={
          1780-4
        }
}
7-Nor-ergosterolide (1), a rare 7-norsteroid with an unusual pentalactone B-ring system, and two new steroid derivatives, 3β,11α-dihydroxyergosta-8,24(28)-dien-7-one (2) and 3β-hydroxyergosta-8,24(28)-dien-7-one (3), were characterized from the culture extract of Aspergillus ochraceus EN-31, an endophytic fungus isolated from the marine brown alga Sargassum kjellmanianum. In addition, nine known related steroids were isolated and identified. The structures of these compounds were established on… 
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