Chemical constituents from tiger's betel, Piper porphyrophyllum N.E.Br. (Fam. Piperaceae).

Nat Prod Res 2010 Mar;24(4):387-90

Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, Skudai, Johor Bahru, Malaysia.

Seven flavonoid compounds have been isolated from the aerial parts of tiger's betel (Piper porphyrophyllum), which were identified as 5,7-dimethoxyflavone, 4',5,7-trimethoxy-flavone, 3',4',5,7-tetramethoxyflavone, 4'-hydroxy-3',5,7-trimethoxyflavone, 5-hydroxy-3',4',7-trimethoxyflavone, 4',5-dihydroxy-3',7-dimethoxyflavone and 5-hydroxy-7-methoxyflavanone. The identification of all compounds was achieved by physical properties and spectroscopically. These data were also confirmed by comparison with previously reported spectral data. Flavonoid compounds with high content in P. porphyrophyllum can probably be used as a chemical marker for this Piper species.

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Source
http://dx.doi.org/10.1080/14786410903421826DOI Listing
March 2010

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