Showing structure for (4as,4br,7r,8ar,10ar)-3-{2-[(2s,4ar,4br,8ar)-2,4b,8,8-tetramethyl-4,4a,5,6,7,8a,9,10-octahydro-3h-phenanthren-2-yl]-2-oxoethyl}-7-ethenyl-4b,7,10a-trimethyl-1-methylidene-5,6,8,8a,9,10-hexahydro-4ah-phenanthren-2-one