A new isoflavanone from Iresine herbstii

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Authors	VALENTOVÁ Marie MAREK Radek ŠVAJDLENKA Emil KUBÍNOVÁ Renata SUCHÝ Václav
Year of publication	2011
Type	Article in Periodical
Magazine / Source	Fitoterapia
MU Faculty or unit	Faculty of Science
Citation
Web	DOI: 10.1016/j.fitote.2010.10.010
Doi	http://dx.doi.org/10.1016/j.fitote.2010.10.010
Field	Analytic chemistry
Keywords	Iresine herbstii; Amaranthaceae; 225-Trimethoxy-67-methylenedioxyisoflavanone; 25-Dimethoxy-67-methylenedioxyisoflavone; Tlatlancuayin; alpha-Glucosidase
Attached files	Fyto11_82_272.pdf
Description	A new isoflavanone 2,2,5-trimethoxy-6,7-methylenedioxyisoflavanone was isolated from the aerial parts of Iresine herbstii, together with isoflavone tlatlancuayin (2,5-dimethoxy-6,7-methylenedioxyisoflavone). The structure was identified using spectroscopic analysis. This is the first description of a methoxy group occurrence at position 2 of the isoflavanone skeleton. Both isolated compounds were tested for alpha-glucosidase inhibitory activity, but showed only a low effect compared to hyperoside.
Related projects:	Proteins in metabolism and interaction of organisms with the environment