Showing structure for (1r,2r,4r,6s,8s,9s,10s,11s,13s)-2,8-bis(acetyloxy)-6-hydroxy-5,5,9-trimethyl-14-methylidene-3,15-dioxotetracyclo[11.2.1.0¹,¹⁰.0⁴,⁹]hexadecan-11-yl acetate