Showing structure for (2r,4e)-4-{[(1r,2r,4ar,6r,8ar)-1,3,6-trimethyl-2-[(1e,3e)-penta-1,3-dien-1-yl]-4a,5,6,7,8,8a-hexahydro-2h-naphthalen-1-yl](hydroxy)methylidene}-5-hydroxy-2-[(1r)-1-hydroxyethyl]-2h-pyrrol-3-one