Showing structure for (7r)-7-[(1e,3e,5e,7e)-8-[(2s,3r,6s)-3-hydroxy-3,5,6-trimethyl-2,6-dihydropyran-2-yl]nona-1,3,5,7-tetraen-1-yl]-4,6,7-trimethyl-2-oxabicyclo[2.2.1]heptane-3,5-dione