The molecule is a tetracyclic triterpenoid isolated from Schisandra and Kadsura longipedunculata. It has been shown to exhibit inhibitory activity against HIV protease. It has a role as a metabolite and a HIV protease inhibitor. It is a tetracyclic triterpenoid and a delta-lactone.
(9R,13R,16R,17R)-8,8,13,17-tetramethyl-16-[(1S)-1-[(2R)-5-methyl-6-oxo-2,3-dihydropyran-2-yl]ethyl]-7-oxatetracyclo[10.7.0.03,9.013,17]nonadeca-1(12),2,4-trien-6-one