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- Title
Dihydroosajaxanthone: A New Natural Xanthone from the Branches of Garcinia Schomburgkiana Pierre.
- Authors
Meechai, Imron; Worrapong Phupong; Warangkana Chunglok; Puttinan Meepowpan
- Abstract
Garcinia schomburgkiana, locally known in Thailand as an edible fruit "Ma-dan", is a plant species of the Clusiaceae family which has been reported as sources of a variety of compounds with biological activities. In the phytochemical studies of Ma-dan, four xanthones were, for the very first time, isolated from the branch acetone extract of G. schomburgkiana. Their structures were determined through the analysis of spectroscopic data (¹H, 13C-NMR, IR and MS) and the comparison with those previously reported. Dihydroosajaxanthone (1), an original synthetic xanthone, is reported herein for the first time as a naturally occurring xanthone, together with three known xanthones: xanthochymone A (2), 1,3,7-trihydroxy-2-(3-hydroxy-3-methylbutyl) xanthone (3) and 1,3,5,6-tetrahydroxyxanthone (4). These compounds, especially dihydroosajaxanthone (1), might be considered as chemotaxonomic markers of the Garcinia genus.
- Subjects
XANTHONE; GARCINIA; PHYTOCHEMICALS; NUCLEAR magnetic resonance; CHEMOTAXONOMY
- Publication
Iranian Journal of Pharmaceutical Research, 2018, Vol 17, Issue 4, p1347
- ISSN
1735-0328
- Publication type
Article