Artoindonesianins N and O, new prenylated stilbene and prenylated arylbenzofuran derivatives from Artocarpus gomezianus

A new prenylated stilbene, named artoindonesianin N ( 1) and a new prenylated arylbenzofuran, named artoindonesianin O ( 2), were isolated from Artocarpus gomezianus Wall. ex Trec. (Moraceae). Their structures were elucidated as 1 and 2 on the basis of spectroscopic evidence. Along with these new compounds, a known phenolic compound was also isolated from this plant and identified as oxyresveratrol ( 3).