New nitrogenous sesquiterpenes based on alloaromadendrane and epi-eudesmane skeletons from the marine sponge Axinellacannabina
- 1 March 1987
- journal article
- research article
- Published by Canadian Science Publishing in Canadian Journal of Chemistry
- Vol. 65 (3) , 518-522
- https://doi.org/10.1139/v87-090
Abstract
Six new nitrogenous sesquiterpenes (1–6), which form two new isocyanide-isothiocyanate-formamide series, have been isolated from the marine sponge Axinellacannabina. The structure elucidation of these compounds is based upon spectral data, including 2D-nmr, and chemical interconversions. The complete assignment of all proton and carbon resonances in nmr spectra of axisonitrile-2 (7), an isonitrile previously isolated from the same source, is also reported, along with its complete relative stereochemistry.Keywords
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