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Phyteumosides A and B: New saponins with unique triterpenoid aglycons from Phyteuma orbiculare L.

Abbet, C. and Neuburger, M. and Wagner, T. and Quitschau, M. and Hamburger, M. and Potterat, O.. (2011) Phyteumosides A and B: New saponins with unique triterpenoid aglycons from Phyteuma orbiculare L. Organic Letters, 13 (6). pp. 1354-1357.

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Official URL: http://edoc.unibas.ch/dok/A5844448

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Abstract

Phyteumosides A (1) and B (2), two saponins with unprecedented triterpenoid aglycons were isolated from the aerial parts of Phyteuma orbiculare (Campanulaceae). Their structures were elucidated by spectroscopic and chemical methods, and corroborated by X-ray diffraction analyses of the aglycons obtained through enzymatic hydrolysis. The aglycon of 1 can be considered as an incompletely cyclized onoceroid or gammaceroid triterpene with two additional tetrahydropyran rings arising from oxygen bridges. Compound 2 possesses a new 17-polypodene aglycon.
Faculties and Departments:05 Faculty of Science > Departement Pharmazeutische Wissenschaften > Pharmazie > Pharmazeutische Biologie (Hamburger)
UniBasel Contributors:Hamburger, Matthias and Abbet, Christian and Raith, Melanie and Potterat, Olivier
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:American Chemical Society
ISSN:1523-7060
e-ISSN:1523-7052
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:28 Nov 2017 10:46
Deposited On:14 Sep 2012 06:40

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