New Oxirapentyn E from Marine Isolate of the Fungus Isaria felina

@article{Yurchenko2013NewOE,
  title={New Oxirapentyn E from Marine Isolate of the Fungus Isaria felina},
  author={Anton N Yurchenko and Olga F. Smetanina and Yu. V. Khudyakova and Natalya N. Kirichuk and Elena L. Chaikina and Mikhail M. Anisimov and Sh. Sh. Afiyatullov},
  journal={Chemistry of Natural Compounds},
  year={2013},
  volume={49},
  pages={857-860}
}
The new highly oxidized chromene oxirapentyn E was isolated from marine isolate of the fungus Isaria felina (DC.) Fr. Its structure was established based on NMR spectroscopy, high-resolution mass spectrometry, and convergent synthesis. Oxirapentyn E at low and ultralow (10–5–10–17 M) doses exhibited stimulating activity on the growth of corn (Zea mays L.) and barley (Hordeum vulgare L.) rootlets. The dose–effect curves were bimodal in nature.