Showing structure for (3e,5e,7e,9e,11e,13e,15e,17e)-1-[(2s,3r,5r)-2,3-dimethyl-5-(2-oxopropyl)oxolan-2-yl]-18-[(1r,2r,4s)-2-hydroxy-2,6,6-trimethyl-7-oxabicyclo[2.2.1]heptan-1-yl]-3,7,12,16-tetramethyloctadeca-3,5,7,9,11,13,15,17-octaen-2-one