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Distribution of pyranocoumarins in Calophyllum cordato-oblongum
H R Dharmaratne1, J R Mayuri Sajeevani, G P Marasinghe
1Natural Products Programme, Institute of Fundamental Studies, Kandy, Sri Lanka.
Phytochemistry
|October 27, 1998
Abstract:
Twigs of Calophyllum cordato-oblongum have been shown to contain a new pyranocoumarin, the methyl ether of cordatolide B, three reported pyranocoumarins, cordato-oblongic acid, friedelin, canophyllol and taraxerol. Buds of this species contained large quantities of pyranocoumarins and a small amount of sitosterol. This observation indicates that the coumarin-synthesising tissues are mainly located at the non woody young plant parts of C. cordato-oblongum.