Showing structure for 15-[1-(4,5-dimethyl-6-oxo-2,3-dihydropyran-2-yl)ethyl]-15-hydroxy-2,16-dimethyl-8-oxapentacyclo[9.7.0.0²,⁷.0⁷,⁹.0¹²,¹⁶]octadec-4-en-3-one