Structural elucidation of bioactive principles in floral extracts of german chamomille (matricaria recutita L.)
Author
dc.contributor.author
Buono Core, Gonzalo
Author
dc.contributor.author
Vanessa Núñez, M.
Author
dc.contributor.author
Lucero, Andrea
Author
dc.contributor.author
Vargas M., Robinson
Author
dc.contributor.author
Jullian Matthaei, Carolina
Admission date
dc.date.accessioned
2018-12-20T15:10:31Z
Available date
dc.date.available
2018-12-20T15:10:31Z
Publication date
dc.date.issued
2011
Cita de ítem
dc.identifier.citation
Journal of the Chilean Chemical Society, Volumen 56, Issue 1, 2011, Pages 549-553
Identifier
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07179707
Identifier
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07179324
Identifier
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10.4067/S0717-97072011000100006
Identifier
dc.identifier.uri
https://repositorio.uchile.cl/handle/2250/158218
Abstract
dc.description.abstract
In this work, bioactive compounds present in flower heads of German Chamomille, were extracted and isolated in pure forms by chromatographic techniques. These compounds, spiroketal enol ethers, present in both isomeric forms Z and E, were characterized and unequivocally identified by spectroscopic techniques. One- (1H, 13C) and two-dimensional (1H-1H-COSY, 1H-1H-NOESY, HMQC and HMBC) NMR were used to assign the configuration of each isomeric compound. It was also found that irradiation of the extracts with UV light induced the photoisomerization of the en-yn-dicycloethers favoring the formation of the more stable E isomer.