The molecule is a meroterpenoid found in Penicillium rubrum and has been shown to exhibit inhibitory activity against caspase-1. It has a role as a cysteine protease inhibitor and a Penicillium metabolite. It is a cyclic terpene ketone, a meroterpenoid, a tertiary alcohol, a carbopolycyclic compound, a beta-diketone, a methyl ester and a tertiary alpha-hydroxy ketone.
methyl (1R,2S,9R,10S,11R,13R,15S)-9,15-dihydroxy-2,6,6,10,13,15-hexamethyl-17-methylidene-7,14,16-trioxotetracyclo[11.3.1.02,11.05,10]heptadec-4-ene-1-carboxylate