Showing structure for (1r,2r,10r,11s,12r,16r,19s,20r)-16-isopropyl-4,10,13,19-tetramethyl-3,7,17-trioxo-6-(propan-2-ylidene)pentacyclo[10.7.1.0¹,¹⁴.0²,¹¹.0⁵,¹¹]icosa-4,13-dien-20-yl acetate