Showing structure for (1s,2s,3r,8s,9z,11z,13s,14r,15s,17r,19s)-13,15-bis(acetyloxy)-5,10,14,19-tetramethyl-6-oxo-4,7,18-trioxapentacyclo[12.5.0.0³,⁵.0³,⁸.0¹⁷,¹⁹]nonadeca-9,11-dien-2-yl acetate