Showing structure for (1s,1's,2's,5's,9's,10'r,13'r,14's)-5',10',14'-trimethyl-6',16'-dioxaspiro[cyclohexane-1,7'-pentacyclo[12.3.3.0¹,¹³.0²,¹⁰.0⁵,⁹]icosan]-3-ene-2,5,15'-trione