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Molecules 2008, 13(2), 444-451; doi:10.3390/molecules13020444
Article

The First Guaian-12-oic Acid Glucopyranosyl Ester and Other Constituents from Picris rhagadioloides (L.) Desf. (Asteraceae)

 and *
Department of Phytochemistry, Institute of Pharmacology, Polish Academy of Sciences, Pl-31-343 Krakow, Poland
* Author to whom correspondence should be addressed.
Received: 8 February 2008 / Revised: 15 February 2008 / Accepted: 15 February 2008 / Published: 19 February 2008
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Abstract

The first guaian-12-oic acid glucopyranosyl ester was isolated from the roots ofPicris rhagadioloides (L.) Desf. (Asteraceae), in addition to five costuslactone-typeguaianolides, four germacranolides and three phenolic compounds. This is the first timethat the known phenolics syringaldehyde and syringaresinol, as well as the knownsesquiterpene lactones glucozaluzanin C, cichorioside C and hypochoeroside A have beendescribed from a Picris species. The compounds were characterized on the basis ofphysicochemical, 1D- and 2D-NMR spectroscopic, and mass spectrometric data.
Keywords: Sesquiterpenoids; phenolics; Picris rhagadioloides; Asteraceae; spectroscopic analysis Sesquiterpenoids; phenolics; Picris rhagadioloides; Asteraceae; spectroscopic analysis
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).
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Michalska, K.; Kisiel, W. The First Guaian-12-oic Acid Glucopyranosyl Ester and Other Constituents from Picris rhagadioloides (L.) Desf. (Asteraceae). Molecules 2008, 13, 444-451.

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