Native and Derivated Prenylisoflavones

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62157124%3A16370%2F04%3A00000050" target="_blank" >RIV/62157124:16370/04:00000050 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Native and Derivated Prenylisoflavones
Original language description
Naturally occuring prenylflavonoids, distributed in plants, are very popular for their various biological activities. Two prenylisoflavones osajin (I) and pomiferin (II) were isolated from the fruits of Maclura pomifera (Moraceae) and identified by spectral analysis [1]. Iso-osajin (III) and iso-pomiferin (IV) were prepared from native isoflavones by reaction of native compounds with formic acid. Cyclization of prenyl chain in position 6 with hydroxyl group in position 5 leads to the new dimethylpyranering. Antioxidant activity of all these compounds was evaluated using methods with 1,1-difenyl-2-picrylhydrazyl (DPPH) and 2,2-azino-bis(3-ethylbenzthiazolin)-6-sulfonic acid (ABTS+). Compounds III and IV exhibit decrease of antioxidant activity. From Iand II were prepared two bromderivates by halogenation and separation using flash chromatography. These compounds are tested for their antifungal properties.
Czech name
Native and Derivated Prenylisoflavones
Czech description
Native and Derivated Prenylisoflavones

Publication year
2004
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Sborník abstrakt - 3rd Conference on Medicinal and Aromatic Plants of Southeast European Countries
ISBN
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ISSN
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e-ISSN
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Number of pages
1
Pages from-to
79
Publisher name
Slovak University of Agriculture in Nitra
Place of publication
Nitra
Event location
Nitra
Event date
Sep 5, 2004
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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