C-glycosyl flavones from Peperomia blanda

dc.creatorVELOZO, Leosvaldo S. M.
dc.creatorFERREIRA, Marcelo J. P.
dc.creatorSANTOS, Maria Isabel S.
dc.creatorMOREIRA, Davyson L.
dc.creatorGUIMARAES, Elsie F.
dc.creatorEMERENCIANO, Vicente P.
dc.creatorKAPLAN, Maria Auxiliadora C.
dc.date.accessioned2012-10-20T05:23:26Z
dc.date.accessioned2018-07-04T15:49:18Z
dc.date.available2012-10-20T05:23:26Z
dc.date.available2018-07-04T15:49:18Z
dc.date.created2012-10-20T05:23:26Z
dc.date.issued2009
dc.identifierFITOTERAPIA, v.80, n.2, p.119-122, 2009
dc.identifier0367-326X
dc.identifierhttp://producao.usp.br/handle/BDPI/31215
dc.identifier10.1016/j.fitote.2008.11.005
dc.identifierhttp://dx.doi.org/10.1016/j.fitote.2008.11.005
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1627853
dc.description.abstractThe methanol extract from aerial parts of the Peperomia blanda (Piperaceae) yielded two C-glycosyl-flavones. Their structures were elucidated on the basis of extensive spectroscopic analysis, including 1D and 2D NMR, chemical transformation and comparison with the related known compounds. The structure of the new flavonoids were established as 4`-methoxy-vitexin 7-O-beta-D-xylopyranoside (1) (7-O-beta-D-xylopyranosyl-8-C-beta-D-glucopyranosyl-4`-methoxy-apigenin) and vicenin-2 (2). The antioxidant activity of both compounds was investigated using the DPPH assay. Both compounds showed only modest activity, with IC50 values of 357.2 mu M for 1, and 90.5 mu M for 2. (C) 2008 Elsevier B.V. All rights reserved.
dc.languageeng
dc.publisherELSEVIER SCIENCE BV
dc.relationFitoterapia
dc.rightsCopyright ELSEVIER SCIENCE BV
dc.rightsrestrictedAccess
dc.subjectPeperomia blanda
dc.subjectPiperaceae
dc.subjectC-Glycosyl flavones
dc.subjectRadical scavenging
dc.subjectDPPH
dc.titleC-glycosyl flavones from Peperomia blanda
dc.typeArtículos de revistas


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