A New Isoprenylated Chalcone, Artoindonesianin J, from the Root and Tree Bark of Artocarpus bracteata.

A new prenylated chalcone artoindonesianin J, the structure of which was determined on the basis of spectroscopic evidence, was isolated from the root and tree bark of Artocarpus bracteata Hook, together with three known flavonoids, kanzonol, 6-(3-methylbut-2-enyl)-apigenin and carpachromene.