Abstract
In a search of bioactive constituents from Guttiferae plants, we have isolated, purified by combining chromatography methods (Gravitation column chromatography, flash column chromatography and preparative chromatography) and elucidated a new pyrano xanthone tetrandraxanthone [1,3-dihydroxy,2′,2′-dimethyl pyrano (5′,6′,5,6) xanthone] (1) and seven known compounds cudraxanthone (2), lupeol (3), stigmasterol (4), thawaitesixanthone (5), 3-α-hopenol (6), isophrenyl benzophenones cambogin (7) and camboginol (8) from hexane and acetone extracts of the stem barks of Garcinia tetrandra Pierre. Their structures were established by spectroscopical data, including 1-D and 2-D NMR. These compounds are the first time reported from this plant.
| Original language | English |
|---|---|
| Pages (from-to) | 137-142 |
| Number of pages | 6 |
| Journal | Journal of Biological Sciences |
| Volume | 8 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 1 Jan 2008 |
Keywords
- Garcinia tetrandra
- New pyrano xanthone [1,3-dihydroxy,2′,2′-dimethyl pyrano (5′,6′,5,6) xanthone]
- Tetrandraxanthone