A new natural product compound benjaminin from Calophyllum benjaminum

• Main Authors: Muhamad Sahimi, Muhamad Syarik, Ee, Gwendoline Cheng Lian, Mahaiyiddin, A. G., Daud, Shaari, Teh, Soek Sin, See, Irene, Sukari, Mohd Aspollah
• Format: Article
• Language: English
• Published: Universiti Putra Malaysia Press 2015
• Online Access: http://psasir.upm.edu.my/id/eprint/24343/1/A%20new%20natural%20product%20compound%20benjaminin%20from%20calophyllum%20benjaminum.pdf; http://psasir.upm.edu.my/id/eprint/24343/; http://pertanika.upm.edu.my/Pertanika%20PAPERS/JTAS%20Vol.%2038%20(1)%20Feb.%202015/01%20Page%201-6%20(JTAS%200567-2013)%20Short%20Communication.pdf

Our detailed study on the chemical constituents of the stem bark of Calophyllum benjaminum and Calophyllum javanicum has resulted in one new coumarin benjaminin (1), five xanthones fuscaxanthone C (2), β-mangostin (3), thwaitesixanthone (4), dombakinaxanthone (5) and caloxanthone A (6), together with four common triterpenes friedelin (7), β-sitosterol (8), lupeol (9) and stigmasterol (10). The structures of these compounds were elucidated using NMR, FTIR and GCMS.