Showing structure for (1s,2s,4r,5s,6s,9s,10s,11r,13r,14r,15s,18s,20r)-20-(acetyloxy)-6-(furan-3-yl)-4,11,18-trihydroxy-5,10,14-trimethyl-3,8-dioxo-16-oxapentacyclo[12.3.3.0¹,¹³.0²,¹⁰.0⁵,⁹]icosan-15-yl (2r)-2-methylbutanoate