Showing structure for 4-{[(2r,3s,4as,8s,8ar)-3-hydroxy-4,4,7,8a-tetramethyl-8-[2-(5-oxo-2h-furan-3-yl)ethyl]-1,2,3,4a,5,8-hexahydronaphthalen-2-yl]oxy}-4-oxobutanoic acid