Showing structure for (1r,2r,5r,10r,11r,14r,15s,16s,17r,20r,22s)-1,2,6,6,10,22-hexamethyl-19-oxaspiro[hexacyclo[12.10.0.0²,¹¹.0⁵,¹⁰.0¹⁵,²².0¹⁶,²⁰]tetracosane-17,2'-oxirane]-7,18-dione