Chemical investigation of ceylonese plants. Part XVII. Isolation and structures of the xanthones in the extractives of Mesua ferrea L. (form M. salicina Pl. and Tr.)(Guttiferae)

Abstract

From the timber extractives of Mesua ferrea L. (form M. salicina Pl. and Tr.) nine known xanthones (2-hydroxy-, 2-methoxy-, 4-hydroxy-, 1,5-dihydroxy-, 1,7-dihydroxy-, 1-hydroxy-5-methoxy-, 1-hydroxy-7-methoxy, 3-hydroxy-4-methoxy-, and 1,5,6-trihydroxy-) and two new xanthones (1,3,6-trihydroxy-7,8-dimethoxy- and 3,6-dihydroxy-1,7,8-trimethoxy-) have been isolated and characterised. Taxonomic and biogenetic correlations are discussed.