Showing structure for (2r,2's,4r,5's,6'r,10'r,13's,14'r,17'r,19'r)-17'-hydroxy-2',4,5',6',14',18',18'-heptamethyl-9'-oxaspiro[oxolane-2,8'-pentacyclo[11.8.0.0²,¹⁰.0⁵,¹⁰.0¹⁴,¹⁹]henicosan]-1'(21')-en-5-one