JOURNAL 244
Records of Natural Products
VOLUME & ISSUE
Year: 2009 Issue: 2 April-June
Year: 2009 Issue: 2 April-June
PAGES
p.110 - 113
p.110 - 113
STATISTICS
Viewed 1947 times.
Viewed 1947 times.
GRAPHICAL ABSTRACT
ABSTRACT
Chemical constituents of rhizomes of Alpinia oxymitra (Zingiberaceae) were investigated. Using chromatographic techniques, two known flavonoids, epicatechin and galloepicatechin, were isolated together with a new calamenene sesquiterpene, (–)-(1R,4S)-8-hydroxy-13-calamenenoic acid. Structure elucidation of the isolated compounds was accomplished by means of spectroscopic techniques, especially NMR spectroscopy and mass spectrometry.
KEYWORDS- Alpinia oxymitra
- Cenolophon oxymitrum
- Zingiberaceae
- flavonoids
- calamenene sesquiterpene.