Showing structure for (1r,2s,4s,8r,9s,10s,12r,13s,14r,17s,19s)-12,17-dihydroxy-8,10,14-trimethyl-5-oxapentacyclo[11.8.0.0²,¹⁰.0⁴,⁹.0¹⁴,¹⁹]henicosane-6,20-dione