Showing structure for (3z,5r)-3-{[(1s,2r,4ar,8s,8ar)-2-[(2s,3s)-2,3-dimethyloxiran-2-yl]-3,8-dimethyl-1,2,4a,5,6,7,8,8a-octahydronaphthalen-1-yl](hydroxy)methylidene}-5-isopropyl-1-methylpyrrolidine-2,4-dione