Showing structure for 6-(4,5-dimethyl-6-oxo-2,3-dihydropyran-2-yl)-8,17-dihydroxy-6,13-dimethyl-7,19-dioxahexacyclo[10.9.0.0²,⁹.0⁵,⁹.0¹³,¹⁸.0¹⁸,²⁰]henicos-15-en-14-one