| Summary: | Six prenylated flavones, including one new compound, were isolated and identified from the stem bark extracts of Artocarpus altilis. The new prenylated flavone
hydroxyartocarpin (1) was characterized as 3-(c,c-dimethylallyl)-6-isopentenyl-5,8,20,40-tetrahydroxy-7-methoxyflavone and the known compounds were artocarpin (2),
morusin (3), cycloartobiloxanthone (4), cycloartocarpin
A (5) and artoindonesianin V (6). The structures of the
compounds were determined by spectroscopic methods
(IR, MS, 1H-NMR and 13C-NMR) and comparison with
published data for the known compounds.
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