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New Oxirapentyn E from Marine Isolate of the Fungus Isaria felina

Author:
Yurchenko, A. N., Smetanina, O. F., Khudyakova, Yu. V., Kirichuk, N. N., Chaikina, E. L., Anisimov, M. M., Afiyatullov, Sh. Sh.
Source:
Chemistry of natural compounds 2013 v.49 no.5 pp. 857-860
ISSN:
0009-3130
Subject:
Hordeum vulgare, Zea mays, fungi, mass spectrometry, nuclear magnetic resonance spectroscopy
Abstract:
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.
Agid:
615675