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Chem Pharm Bull (Tokyo). 2002 Oct;50(10):1390-2.

New bibenzyl cannabinoid from the New Zealand liverwort Radula marginata.

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  • 1Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Japan.


The ether extract of the New Zealand liverwort Radula marginata afforded a new cannabinoid type bibenzyl compound named perrottetinenic acid, and two new bibenzyls, together with a known cannabinoid, perrottetinene. Their structures were established by two dimensional (2D) NMR spectral data. The structure of perrottetinenic acid was a similar to that of Delta(1)-tetrahydrocannabinol, a known hallucinogen. Cannabinoid type bibenzyls have been isolated from liverwort Radula perrottetii, though have not previously been reported from the liverwort R. marginata.

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