The molecule is a tricyclic triterpenoid that is 3,4-seco-lanosta-8,24-diene-26,22-olide 3-methylester substituted by an acetoxy group at position 19 and a hydroxy group at position 4. It is isolated from the fruiting bodies of the Vietnamese mushroom Ganoderma colossum and displays inhibitory activity towards the enzyme HIV protease. It has a role as a HIV protease inhibitor and a fungal metabolite. It is an acetate ester, a tertiary alcohol, a tricyclic triterpenoid, a delta-lactone and a methyl ester.
methyl 3-[(3aR,6R,7R,9bR)-6-(acetyloxymethyl)-7-(2-hydroxypropan-2-yl)-3a,9b-dimethyl-3-[(1S)-1-[(2R)-5-methyl-6-oxo-2,3-dihydropyran-2-yl]ethyl]-1,2,3,4,5,7,8,9-octahydrocyclopenta[a]naphthalen-6-yl]propanoate