Cyclic diarylheptanoids from : isolation, transformation, and bioactivity evaluation.

Three cyclic diarylheptanoids, myricanol (), myricanone (), and porson (), were isolated from (Myricaceae). As a major component, myricanol () was obtained from dry powdered bark and twigs (up to 1.6%).

Morushalunin D, a tri--bridged Diels-Alder type adduct from var. root cultures and the related precursors.

Three Diels-Alder type adducts (-) along with their precursors, including one 2-arylbenzofuran () and one stilbene (), were isolated from the MeOH extract of var. root cultures. Among them, is a new Diels-Alder type adduct named morushalunin D.

Potential cytotoxic Diels-Alder type adducts from liquid medium of var. root cultures.

A new Diels-Alder type adduct named morushalunin (), together with three similar compounds, guangsangon E (), chalcomoracin (), and kuwanon J () were isolated from the EtOAc extract of liquid medium of var. root cultures. The structures of the isolated compounds were determined based on spectroscopic data, including 1D, 2D NMR, and MS data.