| Literature DB >> 16986938 |
Francisco A Macías1, José L G Galindo, Rosa M Varela, Ascensión Torres, José M G Molinillo, Frank R Fronczek.
Abstract
From the medium, polar bioactive fractions of leaf aqueous extract of Helianthus annuus L., heliespirones B (2) and C (3) have been isolated. The structural elucidation was based on extensive spectral studies. A probable biogenesis of heliespirone skeleton is proposed and discussed. The structure of heliespirone B has been confirmed by X-ray diffraction analysis.Entities:
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Year: 2006 PMID： 16986938 DOI： 10.1021/ol061673a
Source DB: PubMed Journal: Org Lett ISSN： 1523-7052 Impact factor: 6.005