Showing structure for 1-hydroxy-16-[1-(3-hydroxy-5-methyl-6-oxo-2,3-dihydropyran-2-yl)ethyl]-8,8,13-trimethyl-17-methylidene-7-oxatetracyclo[10.7.0.0³,⁹.0¹³,¹⁸]nonadeca-2,4,15-trien-6-one