| Autor: |
Michalska K; Department of Phytochemistry, Maj Institute of Pharmacology, Polish Academy of Sciences, Kraków, Poland., Marciniuk J; Department of Botany, University of Podlasie, Siedlce, Poland., Stojakowska A; Department of Phytochemistry, Maj Institute of Pharmacology, Polish Academy of Sciences, Kraków, Poland. |
| Jazyk: |
angličtina |
| Zdroj: |
Natural product research [Nat Prod Res] 2021 Nov; Vol. 35 (21), pp. 4058-4062. Date of Electronic Publication: 2020 Jan 13. |
| DOI: |
10.1080/14786419.2020.1712389 |
| Abstrakt: |
The chemical studies of roots and aerial parts of Taraxacum portentosum Kirschner & Štěpánek, a member of the section Palustria (H. Lindb.) Dahlst. (Asteraceae), led to the isolation of one new eudesmanolide and 13 known compounds, including five sesquiterpenoids: taraxinic acid, 11β,13-dihydrotaraxinic acid, taraxinic acid β-glucopyranosyl ester and its 11β,13-dihydroderivative, ixerin D, one apocarotenoid ‒ loliolide and seven phenolics: scopoletin, 3-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-1-propanone, methyl p -hydroxyphenylacetate, 5-methoxy-eugenyl-4- O -β-glucopyranoside, syringin, dihydroconiferin, and dihydrosyringin. Their structures were established by 1 H NMR. The new compound was characterized as 3-oxo-4β H -11,13-eudesmen-12,6-olide-8- O -β-glucopyranoside based on spectroscopic data (1 D and 2 D NMR) and HRESI mass spectrometry. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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