Venuloxanthone, a new pyranoxanthone from the stem bark of Calophyllum venulosum

Venuloxanthone, a new pyranoxanthone from the stem bark of Calophyllum venulosum

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A new pyranoxanthone, venuloxanthone (1), was isolated from the stem bark of Calophyllum venulosum, together with three other xanthones, tovopyrifolin C (2), ananixanthone (3) and caloxanthone I (4), along with two common triterpenes, friedelin (5) and lupeol (6). The structures of these compounds w...

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Bibliographic Details
Main Authors: Awang, K. (Author), Bin Daud, S. (Author), Bin Ismail, A.A.F (Author), Ee, G.C.L (Author), Hashim, N.M (Author), Teh, S.S (Author)
Format: Article
Language:English
Published: Taylor and Francis Ltd. 2015
Subjects:
ananixanthone
Article
bark
Calophyllum
Calophyllum venulosum
Calophyllum venulosum extract
caloxanthone I
carbon nuclear magnetic resonance
carbonyl derivative
chemical structure
chemistry
Clusiaceae
crystal structure
drug formulation
drug isolation
drug structure
Fourier transform infrared photoacoustic spectroscopy
friedelin
heteronuclear multiple bond correlation
hydroxyl group
isolation and purification
lupeol
melting point
Molecular Structure
molecular weight
nuclear magnetic resonance
Nuclear Magnetic Resonance, Biomolecular
Plant Bark
plant extract
powder
proton nuclear magnetic resonance
pyran derivative
pyranoxanthone
Pyrans
radiation absorption
tovopyrifolin C
triterpene
Triterpenes
unclassified drug
venuloxanthone
xanthone derivative
Xanthones
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