Showing structure for (1r,3s,4s,6r,8s,9s,10r,11s,14s,15s,17r)-5,5,10,15-tetramethyl-7-oxapentacyclo[12.2.1.0¹,¹¹.0⁴,⁹.0⁶,⁸]heptadecane-3,4,10,15,17-pentol