The molecule is a diterpene lactone isolated from the whole plants of Ajuga ciliata. It has a role as a plant metabolite. It is a butenolide, a diterpene lactone, an acetate ester and a spiro-epoxide.
[(1R,4R,4aR,5S,7R,8S,8aR)-5-acetyloxy-4a-(acetyloxymethyl)-7,8-dimethyl-8-[(2S)-2-[(E)-2-methylbut-2-enoyl]oxy-2-(5-oxo-2H-furan-3-yl)ethyl]spiro[2,3,5,6,7,8a-hexahydro-1H-naphthalene-4,2'-oxirane]-1-yl] (2S)-2-methylbutanoate