Article

A new prenylated xanthone from the branches of Calophyllum inophyllum.

Hainan Key Laboratory for Research and Development of Natural Products from Li Folk Medicine, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, China.
Journal of Asian natural products research (impact factor: 0.61). 03/2011; 13(3):265-9. DOI:10.1080/10286020.2010.550884 pp.265-9
Source: PubMed

ABSTRACT The investigation of chemical constituents from the branches of Calophyllum inophyllum Linn led to the isolation of a new prenylated xanthone, named caloxanthone Q (1), together with three known compounds, 2-deprenylrheediaxanthone B (2), jacareubin (3), and 6-deoxyjacareubin (4). Their structures were completely elucidated on the basis of spectroscopic methods (UV, IR, HR-ESI-MS, 1D NMR, and 2D NMR).

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Keywords

2-deprenylrheediaxanthone B
 
6-deoxyjacareubin
 
Calophyllum inophyllum Linn
 
caloxanthone Q
 
chemical constituents
 
HR-ESI-MS
 
new prenylated xanthone
 
spectroscopic methods