Pennigritrem, a naturally-occurring penitrem A analogue with novel cyclisation in the diterpenoid moiety
- 1 January 1992
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Perkin Transactions 1
- Vol. 23 (1) , 23-26
- https://doi.org/10.1039/p19920000023
Abstract
A prominent novel analogue of penitrem A has been resolved from the tremorgenic alkaloids of a strain of Penicillium nigricans and the structure, elucidated by NMR spectroscopy, shown to involve the terminal diterpenoid isoprene in a cyclisation which is unique amongst fungal indolediterpenoids. Consequent conformational changes in the biologically active moiety significantly reduced tremorgenicity.Keywords
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