1. Gymnomitrane sesquiterpenoids from the liverwort Marsupella emarginata var. Patens
- Author
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Hiroshi Nozaki, Koji Yano, Mitsuru Nakayama, Seiryû Uto, Akihiko Matsuo, and Siegfried Huneck
- Subjects
biology ,Marsupella emarginata ,Stereochemistry ,Spatial structure ,Plant Science ,General Medicine ,Horticulture ,biology.organism_classification ,Sesquiterpene ,Biochemistry ,chemistry.chemical_compound ,chemistry ,Chemotaxonomy ,Genus ,Marsupella ,Botany ,Molecular Biology - Abstract
Three new gymnomitrane sesquiterpenoids have been isolated from the liverwort Marsupella emarginata var. patens together with the known (−)-gymnomitrene and (−)-ar-curcumene. Their structures and absolute configurations have been determined on the basis of chemical and spectroscopic evidence as well as from the results of an X-ray analysis of a derivative. We also describe the ring expansion reaction of the gymnomitrane framework and the chemosystematics of the genus Marsupella. more...
- Published
- 1990
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