Showing structure for (1r,2r,7s,9r,11s,12r,15s,16s)-15-[(1r)-1-[(2r)-4,5-dimethyl-6-oxo-2,3-dihydropyran-2-yl]-1-hydroxyethyl]-2,16-dimethyl-8-oxapentacyclo[9.7.0.0²,⁷.0⁷,⁹.0¹²,¹⁶]octadec-4-ene-3,6-dione