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

• Main Authors: Ismail, A. A., Ee, Gwendoline Cheng Lian, Daud, S., Soek, Sin Teh, Mohd Hashim, Najihah, Awang, Khalijah
• Format: Article
• Language: English
• Published: Taylor & Francis 2015
• Online Access: http://psasir.upm.edu.my/id/eprint/46860/1/Venuloxanthone%2C%20a%20new%20pyranoxanthone%20from%20the%20stem%20bark%20of%20Calophyllum%20venulosum.pdf; http://psasir.upm.edu.my/id/eprint/46860/; http://www.tandfonline.com/loi/ganp20
• Institution: Universiti Putra Malaysia

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...