Showing structure for 3-hydroxy-16-[1-(3-hydroxy-5-methyl-6-oxo-2,3-dihydropyran-2-yl)ethyl]-8,8,13,17-tetramethyl-7-oxatetracyclo[10.7.0.0³,⁹.0¹³,¹⁷]nonadec-1(12)-en-6-one