Showing structure for (1r,2r,3r,4s,5r,7r,8s,9r,10e,12z,14r,17s)-7,9-bis(acetyloxy)-5-hydroxy-4,8,12,17-tetramethyl-16-oxo-15,18-dioxatetracyclo[12.4.0.0¹,¹⁷.0³,⁸]octadeca-10,12-dien-2-yl acetate