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

Ahmad Azri Fitri Bin Ismail; Gwendoline Cheng Lian Ee; Shaari Bin Daud; Soek Sin Teh; Najihah Mohd Hashim; Khalijah Awang

doi:10.1080/10286020.2015.1047353

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

J Asian Nat Prod Res. 2015;17(11):1104-8. doi: 10.1080/10286020.2015.1047353. Epub 2015 May 29.

Authors

Ahmad Azri Fitri Bin Ismail¹, Gwendoline Cheng Lian Ee¹, Shaari Bin Daud^{1

2}, Soek Sin Teh¹, Najihah Mohd Hashim³, Khalijah Awang⁴

Affiliations

¹ a Chemistry Department , Faculty of Science, Universiti Putra Malaysia , Serdang 43400 , Selangor , Malaysia.
² b Chemistry Department , Faculty of Applied Science, Universiti Teknologi MARA , Jengka 26400 , Pahang , Malaysia.
³ c Department of Pharmacy , Faculty of Medicine, University of Malaya , Kuala Lumpur , Malaysia.
⁴ d Department of Chemistry , Faculty of Science, University of Malaya , Kuala Lumpur , Malaysia.

PMID: 26023810
DOI: 10.1080/10286020.2015.1047353

Abstract

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 were identified using several spectroscopic analyses which are NMR, GCMS and FTIR experiments.

Keywords: Calophyllum venulosum; Clusiaceae; pyranoxanthone; venuloxanthone.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Calophyllum / chemistry*
Molecular Structure
Nuclear Magnetic Resonance, Biomolecular
Plant Bark / chemistry
Pyrans / chemistry
Pyrans / isolation & purification*
Triterpenes / chemistry
Triterpenes / isolation & purification*
Xanthones / chemistry
Xanthones / isolation & purification*

Substances

Pyrans
Triterpenes
Xanthones
venuloxanthone
friedelin